Grand Isle County climate

Grand Isle County Weather in December

NOAA 1991-2020 normals for St Albans Radio, 17.5 km from Grand Isle County

Average highs run from 38°F on December 1 to 27°F on December 31, and lows from 24°F to 12°F. Normal precipitation for the month is 2.62 in over about 13 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 Grand Isle County, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
32°F
Average low
18°F
Precipitation
2.62 in
Snowfall
16.0 in
Record high
71°FDec 24, 2015
Record low
-18°FDec 28, 2017
Chance of a freeze
100%
Daylight
9 h 03 min to 8 h 51 min
Cloud cover
73%
Humidity
91%
Dew point
20°F
Wind
6.7 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 138°F24°F57°F 20207°F 200740%21%
Dec 238°F24°F47°F 20097°F 200740%21%
Dec 337°F23°F59°F 20098°F 202540%22%
Dec 437°F23°F54°F 20129°F 202540%23%
Dec 536°F22°F53°F 2013-2°F 202540%23%
Dec 636°F22°F52°F 20134°F 200740%24%
Dec 736°F22°F52°F 20224°F 200840%24%
Dec 835°F21°F44°F 2012-2°F 200840%24%
Dec 935°F21°F47°F 2023-11°F 202540%25%
Dec 1035°F20°F57°F 20153°F 201041%25%
Dec 1134°F20°F57°F 20158°F 201841%26%
Dec 1234°F20°F53°F 20152°F 201841%26%
Dec 1333°F19°F51°F 2021-4°F 200841%26%
Dec 1433°F19°F56°F 2015-4°F 201341%26%
Dec 1533°F18°F55°F 2015-3°F 201041%27%
Dec 1632°F18°F63°F 2021-14°F 201341%27%
Dec 1732°F17°F61°F 2021-15°F 201341%27%
Dec 1831°F17°F50°F 2023-5°F 200941%28%
Dec 1931°F17°F58°F 2025-4°F 201941%28%
Dec 2031°F16°F44°F 2018-2°F 200841%28%
Dec 2130°F16°F50°F 2018-1°F 200842%28%
Dec 2230°F15°F54°F 2018-2°F 202442%28%
Dec 2330°F15°F55°F 2015-9°F 200842%29%
Dec 2429°F14°F71°F 20151°F 201342%29%
Dec 2529°F14°F61°F 2020-8°F 201342%29%
Dec 2629°F14°F45°F 2014-6°F 201742%29%
Dec 2728°F13°F49°F 2016-14°F 201742%30%
Dec 2828°F13°F52°F 2008-18°F 201742%30%
Dec 2928°F12°F54°F 2024-16°F 201743%30%
Dec 3027°F12°F57°F 2024-16°F 201743%30%
Dec 3127°F12°F47°F 2022-16°F 201743%30%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grand Isle County, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

December 1
sunrise 7:11 AM, sunset 4:14 PM
December 31
sunrise 7:31 AM, sunset 4:22 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00437032 (St Albans Radio), public domain. Records: NOAA GHCN-Daily, station USW00064776, 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.