Areas of Heavy Rainfall and Critical Fire Weather on Wednesday

Heavy to excessive rainfall may bring flooding to parts of Arizona, New Mexico, Florida, North Carolina, and Virginia Wednesday. Recently burned areas will be particularly vulnerable to flash flooding. Gusty winds and low humidity will bring critical fire weather to parts of the Northwest U.S. and central Alaska on Wednesday where Red Flag Warnings are in effect. Read More >

McCook Thanksgiving Day Climatology

Period of Record 103 Years: 1909-2011

Missing: 1910, 1918, 1920, 1967, 1968, 1971 and 1978

Temperature Information

*Record High*	72°F (1932 & 1960)
*Record Low*	-6°F (1952)
*Coldest High Temperature*	5°F (1919)
*Warmest Low Temperature*	46°F (1963)
Average High (Period of Record)	49°F
Average Low (Period of Record)	22°F
30 year Normal High (1981-2010)	44°F
30 year Normal Low (1981-2010)	19°F
Running 30 year Normal High (1982-2011)	45°F
Running 30 year Normal Low (1982-2011)	19°F

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Distribution of High Temperatures in 10 Degree Fahrenheit Ranges

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Distribution of Low Temperatures in 10 Degree Fahrenheit Ranges

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Precipitation Information

*Greatest Precipitation*	0.85” (1928)
*Greatest Snowfall*	8.5” (1928)
*Precipitation*	16 of 96 years 16.7%
Measurable Precipitation (more than a Trace)	7 of 96 years 7.3%
*Snowfall*	8 of 96 years 8.3%
Measurable Snowfall (more than a Trace)	5 of 96 years 5.2%
*Greatest Snow Depth*	19” (1975)
“White” Thanksgiving (Snow Depth of 1” or more)	10 of 96 years 10.4%