Areas of Severe Thunderstorms and Excessive Rainfall Today

Scattered severe thunderstorms capable of damaging wind gusts and some hail are expected this afternoon and evening from the Upper Ohio River Valley into the Northeast, and from the Appalachians into the Mid-Atlantic States. Excessive rainfall from heavy thunderstorms may produce areas of flash flooding from southern New Mexico into the western and northern Gulf Coast into Wednesday. Read More >

McCook Halloween Climatology

Period of Record 112 Years: 1909-2023

Missing: 1910, 1917 and 1971

Temperature Information

*Record High*	88°F (1968)
*Record Low*	14°F (1991)
*Coldest High Temperature*	21°F (1991)
*Warmest Low Temperature*	50°F (1933)
Average High (Period of Record)	60°F
Average Low (Period of Record)	31.4°F
30 year Normal High (1992-2023)	61.6°F
30 year Normal Low (1992-2023)	32.3°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*	1.30” (1920)
*Greatest Snowfall*	4.0” (1991)
*Precipitation*	17 of 112 years 13.3%
Measurable Precipitation (more than a Trace)	12 of 112 years 10.7%
*Snowfall*	6 of 112 years 5.3%
Measurable Snowfall (more than a Trace)	5 of 112 years 4.4%
*Greatest Snow Depth*	5” (2002)
“White” Halloween (Snow Depth of 1” or more)	5 of 112 years 4.4%