Waterloo Weather in January
Average highs run from 29°F on January 1 to 29°F on January 31, and lows from 13°F to 11°F. Normal precipitation for the month is 1.10 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
- 11°F
- Precipitation
- 1.10 in
- Snowfall
- 10.1 in
- Record high
- 65°FJan 26, 2002
- Record low
- -34°FJan 16, 2009
- Chance of a freeze
- 100%
- Daylight
- 9 h 08 min to 9 h 58 min
- Cloud cover
- 65%
- Humidity
- 88%
- Dew point
- 14°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 | 13°F | 45°F 1954 | -21°F 2018 | 27% | 21% |
| Jan 2 | 29°F | 12°F | 50°F 1998 | -21°F 2018 | 27% | 21% |
| Jan 3 | 29°F | 12°F | 51°F 2007 | -21°F 2014 | 27% | 21% |
| Jan 4 | 29°F | 12°F | 49°F 2007 | -21°F 1999 | 27% | 21% |
| Jan 5 | 29°F | 12°F | 59°F 2012 | -22°F 1972 | 27% | 21% |
| Jan 6 | 29°F | 12°F | 51°F 2012 | -26°F 1970 | 27% | 21% |
| Jan 7 | 28°F | 11°F | 59°F 2003 | -25°F 1971 | 27% | 21% |
| Jan 8 | 28°F | 11°F | 60°F 2003 | -20°F 1970 | 27% | 22% |
| Jan 9 | 28°F | 11°F | 56°F 2020 | -27°F 1977 | 27% | 22% |
| Jan 10 | 28°F | 11°F | 54°F 2012 | -27°F 1982 | 27% | 22% |
| Jan 11 | 28°F | 11°F | 51°F 1992 | -26°F 1977 | 27% | 22% |
| Jan 12 | 28°F | 11°F | 50°F 1961 | -26°F 1974 | 27% | 22% |
| Jan 13 | 28°F | 10°F | 56°F 1996 | -17°F 2015 | 27% | 22% |
| Jan 14 | 28°F | 10°F | 45°F 1980 | -26°F 1963 | 27% | 22% |
| Jan 15 | 28°F | 10°F | 55°F 1990 | -28°F 1963 | 27% | 22% |
| Jan 16 | 28°F | 10°F | 51°F 1990 | -34°F 2009 | 27% | 23% |
| Jan 17 | 28°F | 10°F | 54°F 1996 | -28°F 1977 | 27% | 23% |
| Jan 18 | 28°F | 10°F | 52°F 1996 | -26°F 1967 | 27% | 23% |
| Jan 19 | 28°F | 10°F | 50°F 2013 | -28°F 1970 | 27% | 23% |
| Jan 20 | 28°F | 10°F | 50°F 2018 | -33°F 1994 | 27% | 23% |
| Jan 21 | 28°F | 10°F | 51°F 1964 | -31°F 1970 | 27% | 23% |
| Jan 22 | 28°F | 10°F | 60°F 2002 | -20°F 1956 | 27% | 23% |
| Jan 23 | 28°F | 10°F | 52°F 1981 | -23°F 1963 | 27% | 23% |
| Jan 24 | 28°F | 10°F | 58°F 1981 | -29°F 2008 | 27% | 23% |
| Jan 25 | 28°F | 10°F | 61°F 2002 | -20°F 1982 | 27% | 23% |
| Jan 26 | 28°F | 10°F | 65°F 2002 | -24°F 1982 | 27% | 23% |
| Jan 27 | 28°F | 10°F | 60°F 2002 | -17°F 2019 | 27% | 23% |
| Jan 28 | 28°F | 10°F | 56°F 2025 | -22°F 1966 | 27% | 23% |
| Jan 29 | 28°F | 10°F | 50°F 2025 | -26°F 1966 | 27% | 23% |
| Jan 30 | 29°F | 11°F | 62°F 2025 | -29°F 2019 | 27% | 23% |
| Jan 31 | 29°F | 11°F | 57°F 1989 | -31°F 2019 | 27% | 23% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:39 AM, sunset 4:47 PM
- January 31
- sunrise 7:24 AM, sunset 5:22 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094910 (Waterloo Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00094910, 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.