Wilton Weather in December
Average highs run from 30°F on December 1 to 20°F on December 31, and lows from 12°F to 3°F.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 24°F
- Average low
- 7°F
- Snowfall
- 8.6 in
- Record high
- 66°FDec 2, 2021
- Record low
- -28°FDec 18, 2016
- Chance of a freeze
- 100%
- Daylight
- 8 h 46 min to 8 h 33 min
- Cloud cover
- 67%
- Humidity
- 84%
- Dew point
- 14°F
- Wind
- 11.9 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 30°F | 12°F | 49°F 2017 | -6°F 2024 | 11% | |
| Dec 2 | 29°F | 11°F | 66°F 2021 | -20°F 2014 | 11% | |
| Dec 3 | 29°F | 11°F | 53°F 2017 | -3°F 2025 | 12% | |
| Dec 4 | 29°F | 10°F | 51°F 2012 | -8°F 2022 | 12% | |
| Dec 5 | 28°F | 10°F | 46°F 2020 | -6°F 2011 | 12% | |
| Dec 6 | 28°F | 10°F | 50°F 2020 | -8°F 2013 | 12% | |
| Dec 7 | 27°F | 9°F | 65°F 2023 | -16°F 2013 | 12% | |
| Dec 8 | 27°F | 9°F | 52°F 2015 | -23°F 2013 | 12% | |
| Dec 9 | 26°F | 9°F | 55°F 2020 | -17°F 2013 | 12% | |
| Dec 10 | 26°F | 8°F | 62°F 2015 | -17°F 2016 | 13% | |
| Dec 11 | 26°F | 8°F | 48°F 2015 | -18°F 2016 | 13% | |
| Dec 12 | 25°F | 8°F | 43°F 2014 | -20°F 2013 | 13% | |
| Dec 13 | 25°F | 8°F | 53°F 2017 | -6°F 2016 | 13% | |
| Dec 14 | 24°F | 7°F | 46°F 2014 | -7°F 2016 | 13% | |
| Dec 15 | 24°F | 7°F | 51°F 2018 | -16°F 2016 | 13% | |
| Dec 16 | 24°F | 7°F | 52°F 2018 | -18°F 2016 | 13% | |
| Dec 17 | 23°F | 6°F | 50°F 2025 | -6°F 2016 | 13% | |
| Dec 18 | 23°F | 6°F | 56°F 2011 | -28°F 2016 | 13% | |
| Dec 19 | 23°F | 6°F | 50°F 2018 | -28°F 2016 | 14% | |
| Dec 20 | 22°F | 6°F | 46°F 2011 | -16°F 2022 | 14% | |
| Dec 21 | 22°F | 5°F | 44°F 2018 | -18°F 2013 | 14% | |
| Dec 22 | 22°F | 5°F | 46°F 2023 | -20°F 2022 | 14% | |
| Dec 23 | 21°F | 5°F | 46°F 2020 | -24°F 2013 | 14% | |
| Dec 24 | 21°F | 5°F | 43°F 2011 | -27°F 2013 | 14% | |
| Dec 25 | 21°F | 4°F | 43°F 2011 | -19°F 2022 | 14% | |
| Dec 26 | 21°F | 4°F | 48°F 2011 | -15°F 2017 | 14% | |
| Dec 27 | 20°F | 4°F | 41°F 2024 | -21°F 2017 | 15% | |
| Dec 28 | 20°F | 4°F | 47°F 2011 | -25°F 2017 | 15% | |
| Dec 29 | 20°F | 4°F | 45°F 2024 | -21°F 2021 | 15% | |
| Dec 30 | 20°F | 3°F | 46°F 2024 | -24°F 2021 | 15% | |
| Dec 31 | 20°F | 3°F | 40°F 2011 | -22°F 2017 | 15% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 8:09 AM, sunset 4:55 PM
- December 31
- sunrise 8:30 AM, sunset 5:03 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00329455 (Wilton), public domain. Records: NOAA GHCN-Daily, station USC00320818, 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.