Waterloo Weather in January
Average highs run from 33°F on January 1 to 34°F on January 31, and lows from 17°F to 16°F. Normal precipitation for the month is 0.85 in over about 6 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
- 33°F
- Average low
- 15°F
- Precipitation
- 0.85 in
- Snowfall
- 7.4 in
- Record high
- 68°FJan 31, 2012
- Record low
- -20°FJan 14, 2024
- Chance of a freeze
- 100%
- Daylight
- 9 h 16 min to 10 h 04 min
- Cloud cover
- 64%
- Humidity
- 82%
- Dew point
- 17°F
- Wind
- 11.6 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 | 33°F | 17°F | 54°F 2026 | -18°F 2018 | 20% | 16% |
| Jan 2 | 33°F | 16°F | 51°F 2006 | -18°F 2018 | 20% | 16% |
| Jan 3 | 33°F | 16°F | 42°F 2009 | -11°F 2010 | 20% | 16% |
| Jan 4 | 33°F | 16°F | 52°F 2019 | -10°F 2010 | 20% | 16% |
| Jan 5 | 33°F | 16°F | 54°F 2012 | -10°F 2010 | 20% | 16% |
| Jan 6 | 33°F | 16°F | 66°F 2012 | -12°F 2014 | 20% | 16% |
| Jan 7 | 33°F | 16°F | 58°F 2026 | -11°F 2014 | 20% | 16% |
| Jan 8 | 33°F | 16°F | 65°F 2026 | -7°F 2010 | 19% | 16% |
| Jan 9 | 33°F | 15°F | 51°F 2007 | -7°F 2010 | 19% | 16% |
| Jan 10 | 33°F | 15°F | 52°F 2012 | -5°F 2016 | 20% | 16% |
| Jan 11 | 33°F | 15°F | 59°F 2012 | -6°F 2016 | 20% | 16% |
| Jan 12 | 33°F | 15°F | 57°F 2006 | -2°F 2011 | 20% | 17% |
| Jan 13 | 33°F | 15°F | 59°F 2026 | -7°F 2011 | 20% | 17% |
| Jan 14 | 33°F | 15°F | 54°F 2026 | -20°F 2024 | 20% | 17% |
| Jan 15 | 33°F | 15°F | 55°F 2006 | -20°F 2024 | 20% | 17% |
| Jan 16 | 33°F | 15°F | 66°F 2006 | -15°F 2009 | 20% | 17% |
| Jan 17 | 33°F | 15°F | 59°F 2015 | -10°F 2024 | 20% | 17% |
| Jan 18 | 33°F | 15°F | 52°F 2015 | -8°F 2016 | 20% | 17% |
| Jan 19 | 33°F | 15°F | 60°F 2006 | -6°F 2008 | 20% | 18% |
| Jan 20 | 33°F | 15°F | 66°F 2014 | -12°F 2024 | 21% | 18% |
| Jan 21 | 33°F | 15°F | 51°F 2021 | -13°F 2025 | 21% | 18% |
| Jan 22 | 33°F | 15°F | 51°F 2017 | -10°F 2025 | 21% | 18% |
| Jan 23 | 33°F | 15°F | 52°F 2009 | -9°F 2026 | 21% | 18% |
| Jan 24 | 33°F | 15°F | 47°F 2006 | -9°F 2026 | 21% | 18% |
| Jan 25 | 33°F | 15°F | 52°F 2006 | -8°F 2008 | 21% | 19% |
| Jan 26 | 33°F | 15°F | 53°F 2005 | -8°F 2026 | 21% | 19% |
| Jan 27 | 33°F | 15°F | 64°F 2006 | -7°F 2026 | 21% | 19% |
| Jan 28 | 34°F | 15°F | 59°F 2006 | -3°F 2014 | 22% | 19% |
| Jan 29 | 34°F | 15°F | 60°F 2015 | -1°F 2007 | 22% | 19% |
| Jan 30 | 34°F | 15°F | 56°F 2022 | -15°F 2019 | 22% | 19% |
| Jan 31 | 34°F | 16°F | 68°F 2012 | -14°F 2019 | 22% | 19% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:51 AM, sunset 5:07 PM
- January 31
- sunrise 7:37 AM, sunset 5:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00258795 (Valley NWS), public domain. Records: NOAA GHCN-Daily, station USC00253467, 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.