Somonauk Weather in January
Average highs run from 29°F on January 1 to 28°F on January 31, and lows from 14°F to 12°F. Normal precipitation for the month is 1.60 in over about 8 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 28°F
- Average low
- 12°F
- Precipitation
- 1.60 in
- Snowfall
- 9.6 in
- Record high
- 64°FJan 7, 2008
- Record low
- -33°FJan 16, 2009
- Chance of a freeze
- 100%
- Daylight
- 9 h 13 min to 10 h 01 min
- Cloud cover
- 67%
- Humidity
- 87%
- Dew point
- 18°F
- Wind
- 12.1 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 29°F | 14°F | 46°F 2000 | -15°F 2018 | 27% | 15% |
| Jan 2 | 29°F | 13°F | 60°F 2000 | -16°F 2018 | 27% | 15% |
| Jan 3 | 29°F | 13°F | 49°F 2023 | -12°F 2014 | 27% | 15% |
| Jan 4 | 29°F | 13°F | 50°F 2007 | -17°F 1999 | 27% | 15% |
| Jan 5 | 28°F | 13°F | 50°F 2007 | -27°F 1999 | 27% | 15% |
| Jan 6 | 28°F | 13°F | 60°F 2008 | -18°F 2018 | 27% | 16% |
| Jan 7 | 28°F | 13°F | 64°F 2008 | -18°F 1999 | 27% | 16% |
| Jan 8 | 28°F | 12°F | 60°F 2026 | -9°F 2014 | 27% | 16% |
| Jan 9 | 28°F | 12°F | 59°F 2026 | -12°F 1999 | 27% | 16% |
| Jan 10 | 28°F | 12°F | 55°F 2018 | -14°F 2010 | 27% | 16% |
| Jan 11 | 28°F | 12°F | 58°F 2018 | -5°F 1999 | 27% | 16% |
| Jan 12 | 28°F | 12°F | 58°F 2005 | -2°F 2009 | 27% | 16% |
| Jan 13 | 28°F | 12°F | 50°F 2026 | -13°F 2009 | 27% | 16% |
| Jan 14 | 28°F | 12°F | 44°F 2016 | -15°F 2009 | 27% | 16% |
| Jan 15 | 28°F | 11°F | 44°F 2016 | -24°F 2009 | 27% | 16% |
| Jan 16 | 28°F | 11°F | 50°F 2023 | -33°F 2009 | 27% | 17% |
| Jan 17 | 27°F | 11°F | 48°F 2025 | -8°F 2018 | 27% | 17% |
| Jan 18 | 27°F | 11°F | 44°F 2022 | -6°F 2009 | 26% | 17% |
| Jan 19 | 27°F | 11°F | 55°F 2006 | -6°F 2008 | 26% | 17% |
| Jan 20 | 27°F | 11°F | 45°F 2017 | -8°F 2008 | 26% | 17% |
| Jan 21 | 27°F | 11°F | 59°F 2017 | -14°F 2000 | 26% | 17% |
| Jan 22 | 28°F | 11°F | 55°F 2018 | -6°F 2011 | 26% | 17% |
| Jan 23 | 28°F | 11°F | 46°F 2002 | -11°F 2026 | 26% | 17% |
| Jan 24 | 28°F | 11°F | 43°F 2010 | -17°F 2008 | 26% | 17% |
| Jan 25 | 28°F | 11°F | 48°F 2002 | -20°F 2008 | 26% | 17% |
| Jan 26 | 28°F | 11°F | 52°F 2002 | -24°F 2019 | 26% | 17% |
| Jan 27 | 28°F | 11°F | 58°F 2002 | -25°F 2019 | 25% | 17% |
| Jan 28 | 28°F | 11°F | 54°F 2002 | -15°F 2014 | 25% | 16% |
| Jan 29 | 28°F | 11°F | 64°F 2013 | -13°F 2019 | 25% | 16% |
| Jan 30 | 28°F | 12°F | 53°F 2000 | -27°F 2019 | 25% | 16% |
| Jan 31 | 28°F | 12°F | 56°F 2012 | -32°F 2019 | 25% | 16% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:22 AM, sunset 4:35 PM
- January 31
- sunrise 7:08 AM, sunset 5:09 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00116661 (Paw Paw 2S), public domain. Records: NOAA GHCN-Daily, station USW00004808, 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.