Cook County climate

Cook County Weather in December

NOAA 1991-2020 normals for Grand Marais, 17.5 km from Cook County

Average highs run from 31°F on December 1 to 23°F on December 31, and lows from 18°F to 8°F. Normal precipitation for the month is 1.46 in over about 7 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Cook County, in °F, with the record for each date.-200204060151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
26°F
Average low
13°F
Precipitation
1.46 in
Snowfall
13.4 in
Record high
51°FDec 9, 2020
Record low
-20°FDec 31, 2013
Chance of a freeze
100%
Daylight
8 h 42 min to 8 h 28 min
Cloud cover
70%
Humidity
94%
Dew point
12°F
Wind
8.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 131°F18°F43°F 1999-4°F 200724%13%
Dec 230°F18°F43°F 20150°F 200224%14%
Dec 330°F17°F47°F 1998-1°F 200224%14%
Dec 430°F17°F44°F 2001-3°F 202524%14%
Dec 529°F16°F45°F 2001-2°F 200024%15%
Dec 629°F16°F45°F 2012-4°F 202124%15%
Dec 729°F16°F46°F 2005-7°F 202524%15%
Dec 828°F15°F42°F 2023-8°F 201324%16%
Dec 928°F15°F51°F 2020-5°F 201324%16%
Dec 1028°F15°F44°F 2001-12°F 200024%16%
Dec 1128°F14°F41°F 1998-10°F 200024%16%
Dec 1227°F14°F44°F 1998-15°F 200024%17%
Dec 1327°F13°F44°F 2021-10°F 202524%17%
Dec 1427°F13°F46°F 2018-10°F 200724%17%
Dec 1526°F13°F48°F 2021-8°F 200824%17%
Dec 1626°F12°F48°F 2021-17°F 200824%18%
Dec 1726°F12°F38°F 2023-9°F 201624%18%
Dec 1826°F12°F40°F 2025-14°F 200424%18%
Dec 1925°F11°F40°F 2006-16°F 200424%18%
Dec 2025°F11°F43°F 2006-9°F 199924%18%
Dec 2125°F11°F41°F 2009-16°F 199924%19%
Dec 2225°F11°F45°F 2009-14°F 199824%19%
Dec 2324°F10°F42°F 2009-14°F 200424%19%
Dec 2424°F10°F45°F 2023-15°F 200424%19%
Dec 2524°F10°F46°F 2023-14°F 201724%19%
Dec 2624°F9°F42°F 2011-18°F 201724%20%
Dec 2724°F9°F41°F 2011-15°F 201724%20%
Dec 2823°F9°F46°F 2023-5°F 202024%20%
Dec 2923°F9°F41°F 2023-16°F 201324%20%
Dec 3023°F8°F38°F 2002-19°F 199824%20%
Dec 3123°F8°F38°F 2006-20°F 201324%20%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cook County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CST).

December 1
sunrise 7:30 AM, sunset 4:12 PM
December 31
sunrise 7:51 AM, sunset 4:19 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00213282 (Grand Marais), public domain. Records: NOAA GHCN-Daily, station USW00094992, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.