--- - attributes: ~ caption: |2 Figure 1: Observed and projected changes (compared to the 1901–1960 average) in near-surface air temperature for Oklahoma. Observed data are for 1900–2014. Projected changes for 2015–2100 are from global climate models for two possible futures: one in which greenhouse gas emissions continue to increase (higher emissions) and another in which greenhouse gas emissions increase at a slower rate (lower emissions). Temperatures in Oklahoma (orange line) have risen less than 1°F since the beginning of the 20th century. Shading indicates the range of annual temperatures from the set of models. Observed temperatures are generally within the envelope of model simulations of the historical period (gray shading). Historically unprecedented warming is projected during the 21st century. Less warming is expected under a lower emissions future (the coldest years being about as warm as the hottest year in the historical record; green shading) and more warming under a higher emissions future (the hottest years being about 11°F warmer than the hottest year in the historical record; red shading). Source: CICS-NC/NOAA NCEI. chapter_identifier: oklahoma create_dt: 2015-08-12T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-and-projected-temperature-change.yaml identifier: ok-observed-and-projected-temperature-change lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 1 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2100-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed and Projected Temperature Change uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-and-projected-temperature-change url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 The observed average summer temperatures for 1895–2014, averaged over 5-year periods; these values are averages from NCEI’s version 2 climate division dataset. Summer temperatures during the most recent 5-year period (2010–2014) have almost reached the same level as the record extreme heat of the 1930s Dust Bowl era. Due to extreme drought and poor land management practices, the summers of the 1930s remain the warmest on record. The dark horizontal line on each graph is the long-term average of 79.9°F. Source: CICS-NC/NOAA NCEI. chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-summer-temperature.yaml identifier: ok-observed-summer-temperature lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 2 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1895-01-01T00:00:00 title: Observed Summer Temperature uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-summer-temperature url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extremely-hot-days.yaml identifier: ok-observed-number-of-extremely-hot-days lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 3a report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1899-12-31T00:00:00 title: Observed Number of Extremely Hot Days uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extremely-hot-days url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extremely-warm-nights.yaml identifier: ok-observed-number-of-extremely-warm-nights lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 3b report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Extremely Warm Nights uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extremely-warm-nights url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-annual-precipitation.yaml identifier: ok-observed-annual-precipitation lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 3c report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1895-01-01T00:00:00 title: Observed Annual Precipitation uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-annual-precipitation url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-summer-precipitation.yaml identifier: ok-observed-summer-precipitation lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 3d report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1895-01-01T00:00:00 title: Observed Summer Precipitaton uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-summer-precipitation url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 The observed number of very cold nights (annual number of days with minimum temperature below 0°F) for 1900–2014, averaged over 5-year periods; these values are averages from nine long-term reporting stations. Since 1990, Oklahoma has consistently experienced a below average number of very cold nights, indicative of winter warming in the region. The dark horizontal line on each graph is the long-term average of 1.1 days per year. Source: CICS-NC and NOAA NCEI. chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-very-cold-nights.yaml identifier: ok-observed-number-of-very-cold-nights lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 4 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Very Cold Nights uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-very-cold-nights url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 The observed number of extreme precipitation events (annual number of events with precipitation above 2 inches) for 1900–2014, averaged over 5-year periods; these values are averages from 16 long-term reporting stations. Oklahoma has experienced an above average number of extreme precipitation events since 1985, with the exception of the most recent period (2010–2014). The dark horizontal line on each graph is the long-term average of 2.5 events per year. Source: CICS-NC and NOAA NCEI. chapter_identifier: oklahoma create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extreme-precipitation-events.yaml identifier: ok-observed-number-of-extreme-precipitation-events lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 5 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Extreme Precipitation Events uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-observed-number-of-extreme-precipitation-events url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 Time series of the Palmer Drought Severity Index from the year 1000 to 2013. Values for 1895–2013 (red) are based on measured temperature and precipitation. Values prior to 1895 (blue) are estimated from indirect measures such as tree rings. The thick solid line is a running 20-year average. In the modern era, the wet periods of the 1980s and 1990s and the dry periods of the 1930s and 1950s are evident. The extended record indicates periodic occurrences of similar extended wet and dry periods. Source: CICS-NC and NOAA NCEI. chapter_identifier: oklahoma create_dt: 2015-06-05T02:21:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/oklahoma-palmer-drought-severity-index.yaml identifier: oklahoma-palmer-drought-severity-index lat_max: 37.0023 lat_min: 33.6160 lon_max: -103.0026 lon_min: -94.4314 ordinal: 6 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2013-12-31T00:00:00 time_start: 1000-01-01T00:00:00 title: Oklahoma Palmer Drought Severity Index uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/oklahoma-palmer-drought-severity-index url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: 'Projected change in summer precipitation (%) for the middle of the 21st century relative to the late 20th century under a higher emissions pathway. Hatching represents areas where the majority of climate models indicate a statistically significant change. Precipitation in the summer is projected to decrease slightly in Oklahoma, but the changes are smaller than natural variations. Source: CICS-NC, NOAA NCEI, and NEMAC.' chapter_identifier: oklahoma create_dt: 2019-02-15T18:29:22 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-projected-change-in-summer-precipitation.yaml identifier: ok-projected-change-in-summer-precipitation lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ ordinal: 7 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: 2019-06-11T16:39:06 time_end: 2070-12-31T00:00:00 time_start: 1971-01-01T00:00:00 title: Projected Change in Summer Precipitation uri: /report/noaa-led-state-summaries-2017/chapter/oklahoma/figure/ok-projected-change-in-summer-precipitation url: ~ usage_limits: Figure may be copyright protected and permission may be required. Contact original figure source for information - attributes: ~ caption: |+2 Observed and projected changes (compared to the 1901–1960 average) in near-surface air temperature for Oregon. Observed data are for 1900–2014. Projected changes for 2006–2100 are from global climate models for two possible futures: one in which greenhouse gas emissions continue to increase (higher emissions) and another in which greenhouse gas emissions increase at a slower rate (lower emissions). Temperatures in Oregon (orange line) have risen about 2°F since the beginning of the 20th century. Shading indicates the range of annual temperatures from the set of models. Observed temperatures are generally within the envelope of model simulations of the historical period (gray shading). Historically unprecedented warming is projected during the 21st century. Less warming is expected under a lower emissions future (the coldest years being about 2°F warmer than the historical average; green shading) and more warming under a higher emissions future (the hottest years being about 10°F warmer than the hottest year in the historical record; red shading). Source: CICS-NC and NOAA NCEI. chapter_identifier: oregon create_dt: 2015-08-12T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-and-projected-temperature-change.yaml identifier: or-observed-and-projected-temperature-change lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 1 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2100-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed and Projected Temperature Change uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-and-projected-temperature-change url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 The observed number of extremely hot days (annual number of days with maximum temperature above 100°F) for 1900–2014, averaged over 5-year periods; these values are averages from 14 long-term reporting stations. The dark horizontal line represents the long-term average. The number of extremely hot days has been mostly above the long-term average since the late 1980s, reaching a historic peak in 2000–2004. However, the number was below average during the most recent 5-year period. Source: CICS-NC and NOAA NCEI. chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-extremely-hot-days.yaml identifier: or-observed-number-of-extremely-hot-days lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 2 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1899-12-31T00:00:00 title: Observed Number of Extremely Hot Days uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-extremely-hot-days url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 The observed number of very cold nights (annual number of days with minimum temperature below 0°F) for 1900–2014, averaged over 5-year periods; these values are averages from 14 long-term reporting stations. The dark horizontal line represents the long-term average. Since 1995, Oregon has experienced a below average number of very cold nights, indicative of the winter warming occurring in the region. Source: CICS-NC and NOAA NCEI. chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-very-cold-nights.yaml identifier: or-observed-number-of-very-cold-nights lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 3 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Very Cold Nights uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-very-cold-nights url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-days-below-freezing.yaml identifier: or-observed-number-of-days-below-freezing lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 4a report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Days Below Freezing uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-days-below-freezing url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-warm-nights.yaml identifier: or-observed-number-of-warm-nights lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 4b report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Warm Nights uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-warm-nights url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-annual-precipitation.yaml identifier: or-observed-annual-precipitation lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 4c report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1895-01-01T00:00:00 title: Observed Annual Precipitation uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-annual-precipitation url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: ~ chapter_identifier: oregon create_dt: 2015-04-13T00:00:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-extreme-precipitation-events.yaml identifier: or-observed-number-of-extreme-precipitation-events lat_max: 46.2938 lat_min: 41.9920 lon_max: -124.5664 lon_min: -116.4633 ordinal: 4d report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-12-31T00:00:00 time_start: 1900-01-01T00:00:00 title: Observed Number of Extreme Precipitation Events uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-observed-number-of-extreme-precipitation-events url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: |+2 Variations in the annual April 1 snow water equivalent at the Tangent Snow Course site, located near Bend, OR. Snow water equivalent (SWE) is the amount of water contained within the snowpack. SWE is highly variable from year to year. There was no snowpack in 2015 due to unusually low precipitation and warm temperatures during the first three months of the year. Source: USDA Natural Resources Conservation Service. chapter_identifier: oregon create_dt: 2015-01-13T15:51:17 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/end-of-season-snow-water-equivalent-depth-at-mt-hood.yaml identifier: end-of-season-snow-water-equivalent-depth-at-mt-hood lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ ordinal: 5 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2014-06-01T00:00:00 time_start: 1981-04-01T00:00:00 title: End of Season Snow Water Equivalent Depth at Mt. Hood uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/end-of-season-snow-water-equivalent-depth-at-mt-hood url: ~ usage_limits: Free to use with credit to the original figure source. - attributes: ~ caption: 'Projected changes in winter precipitation (%) for the middle of the 21st century compared to the late 20th century under a higher emissions pathway. Hatching represents areas where the majority of climate models indicate a statistically significant change. Precipitation in the winter is projected to increase across the entire state of Oregon. Source: CICS-NC, NOAA NCEI, and NEMAC.' chapter_identifier: oregon create_dt: 2019-02-15T18:29:40 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-projected-change-in-winter-precipitation.yaml identifier: or-projected-change-in-winter-precipitation lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ ordinal: 6 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: 2019-06-11T16:41:39 time_end: 2070-12-31T00:00:00 time_start: 1971-01-01T00:00:00 title: Projected Change in Winter Precipitation uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-projected-change-in-winter-precipitation url: ~ usage_limits: Figure may be copyright protected and permission may be required. Contact original figure source for information - attributes: ~ caption: |+2 Estimated, observed, and possible future amounts of global sea level rise from 1800 to 2100, relative to the year 2000. The orange line at right shows the most likely range of 1 to 4 feet by 2100 based on an assessment of scientific studies, which falls within a larger possible range of 0.66 feet to 6.6 feet. Source: Melillo et al. 2014 and Parris et al. 2012. chapter_identifier: oregon create_dt: 2013-11-15T14:51:00 href: https://data.globalchange.gov/report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-past-and-projected-changes-in-global-sea-level.yaml identifier: or-past-and-projected-changes-in-global-sea-level lat_max: 90 lat_min: -90 lon_max: 180 lon_min: -180 ordinal: 7 report_identifier: noaa-led-state-summaries-2017 source_citation: ~ submission_dt: ~ time_end: 2100-12-31T00:00:00 time_start: 1800-01-01T00:00:00 title: Past and Projected Changes in Global Sea Level uri: /report/noaa-led-state-summaries-2017/chapter/oregon/figure/or-past-and-projected-changes-in-global-sea-level url: ~ usage_limits: ~