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Figure : va-observed-number-of-very-cold-nights
Observed Number of Very Cold Nights
Figure 46.3Cooperative Institute for Climate and Satellites - NC
Kenneth E. Kunkel
The observed number of very cold nights (minimum temperature below 0°F) for 1900–2014, averaged over 5-year periods; these values are averages from nine long-term reporting stations. The number of very cold nights dropped below the long-term average between the 1920s and 1960s, followed by an above average number of such events until the early 1990s. The number of very cold nights has remained below average for the past two decades (1990–2014). The dark horizontal line is the long-term average (1900–2014) of 1.6 days per year. Source: CICS-NC and NOAA NCEI.
Free to use with credit to the original figure source.
The time range for this figure is January 01, 1900 (00:00 AM) to December 31, 2014 (00:00 AM).
This figure was created on April 13, 2015.
The spatial range for this figure is 36.5408° to 39.4659° latitude, and -75.2418° to -83.6752° longitude.
ProvenanceThis figure was derived from dataset Global Historical Climatology Network - Daily using the activity va-very-cold-nights-noaa-ncdc-ghcn-daily-process
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