Areas of Severe Thunderstorms and Excessive Rainfall Today

Scattered severe thunderstorms capable of damaging wind gusts are expected across the Mid-Atlantic vicinity this afternoon and evening. Additional strong to severe storms are expected across the upper Ohio Valley and Lower Great Lakes area. Excessive rainfall from heavy thunderstorms may produce areas of flash flooding from southern New Mexico into the western and northern Gulf Coast into Tuesday. 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%