Joliet Weather in December
Average highs run from 39°F on December 1 to 35°F on December 31, and lows from 14°F to 9°F. Normal precipitation for the month is 0.58 in over about 5 wet days.
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
- 36°F
- Average low
- 11°F
- Precipitation
- 0.58 in
- Snowfall
- 9.1 in
- Record high
- 74°FDec 2, 2021
- Record low
- -26°FDec 23, 2022
- Chance of a freeze
- 100%
- Daylight
- 8 h 58 min to 8 h 46 min
- Cloud cover
- 70%
- Humidity
- 70%
- Dew point
- 17°F
- Wind
- 9.2 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 | 39°F | 14°F | 67°F 2021 | -13°F 2014 | 16% | 13% |
| Dec 2 | 38°F | 14°F | 74°F 2021 | -4°F 2007 | 16% | 14% |
| Dec 3 | 38°F | 14°F | 64°F 2024 | 2°F 2005 | 16% | 14% |
| Dec 4 | 38°F | 14°F | 59°F 2007 | -2°F 2013 | 16% | 14% |
| Dec 5 | 38°F | 13°F | 67°F 2012 | -17°F 2013 | 16% | 14% |
| Dec 6 | 37°F | 13°F | 64°F 2023 | -18°F 2013 | 16% | 14% |
| Dec 7 | 37°F | 13°F | 61°F 2020 | -23°F 2013 | 16% | 14% |
| Dec 8 | 37°F | 13°F | 66°F 2020 | -20°F 2013 | 16% | 15% |
| Dec 9 | 36°F | 12°F | 66°F 2015 | -6°F 2000 | 16% | 15% |
| Dec 10 | 36°F | 12°F | 59°F 2014 | -6°F 2000 | 16% | 15% |
| Dec 11 | 36°F | 12°F | 67°F 2004 | -13°F 2000 | 16% | 15% |
| Dec 12 | 36°F | 12°F | 58°F 2017 | -14°F 2000 | 16% | 15% |
| Dec 13 | 36°F | 11°F | 59°F 2014 | -7°F 2008 | 16% | 15% |
| Dec 14 | 35°F | 11°F | 58°F 2018 | -20°F 2008 | 16% | 15% |
| Dec 15 | 35°F | 11°F | 57°F 2025 | -18°F 2008 | 16% | 15% |
| Dec 16 | 35°F | 11°F | 59°F 2025 | -17°F 2008 | 16% | 15% |
| Dec 17 | 35°F | 11°F | 61°F 2025 | -7°F 2008 | 16% | 15% |
| Dec 18 | 35°F | 10°F | 60°F 2018 | -7°F 2005 | 16% | 15% |
| Dec 19 | 35°F | 10°F | 58°F 2004 | -8°F 2008 | 16% | 16% |
| Dec 20 | 35°F | 10°F | 61°F 2024 | -17°F 2008 | 16% | 16% |
| Dec 21 | 35°F | 10°F | 59°F 2024 | -23°F 2022 | 16% | 16% |
| Dec 22 | 35°F | 10°F | 60°F 2023 | -24°F 2022 | 16% | 16% |
| Dec 23 | 35°F | 10°F | 56°F 2019 | -26°F 2022 | 16% | 16% |
| Dec 24 | 35°F | 10°F | 54°F 2003 | -5°F 2008 | 16% | 16% |
| Dec 25 | 35°F | 10°F | 64°F 2025 | -2°F 2017 | 16% | 16% |
| Dec 26 | 35°F | 9°F | 61°F 2025 | -5°F 2017 | 16% | 16% |
| Dec 27 | 35°F | 9°F | 54°F 2022 | -9°F 2021 | 16% | 16% |
| Dec 28 | 35°F | 9°F | 58°F 2011 | -4°F 2021 | 16% | 16% |
| Dec 29 | 35°F | 9°F | 62°F 1999 | -4°F 2017 | 16% | 15% |
| Dec 30 | 35°F | 9°F | 56°F 2011 | -7°F 2017 | 16% | 15% |
| Dec 31 | 35°F | 9°F | 57°F 2025 | -17°F 2017 | 16% | 15% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:36 AM, sunset 4:34 PM
- December 31
- sunrise 7:56 AM, sunset 4:42 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00244506 (Joliet), public domain. Records: NOAA GHCN-Daily, station USC00240801, 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.