West Allis Weather in January
Average highs run from 33°F on January 1 to 30°F on January 31, and lows from 17°F to 14°F. Normal precipitation for the month is 2.23 in over about 10 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
- 31°F
- Average low
- 15°F
- Precipitation
- 2.23 in
- Snowfall
- 13.5 in
- Record high
- 60°FJan 30, 2013
- Record low
- -27°FJan 30, 1951
- Chance of a freeze
- 100%
- Daylight
- 9 h 05 min to 9 h 55 min
- Cloud cover
- 75%
- Humidity
- 90%
- Dew point
- 16°F
- Wind
- 13.2 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 33°F | 17°F | 54°F 2011 | -12°F 1968 | 36% | 25% |
| Jan 2 | 33°F | 17°F | 56°F 2000 | -15°F 1979 | 36% | 25% |
| Jan 3 | 33°F | 17°F | 55°F 1998 | -14°F 1979 | 35% | 25% |
| Jan 4 | 32°F | 17°F | 51°F 2007 | -11°F 1959 | 35% | 25% |
| Jan 5 | 32°F | 16°F | 54°F 2007 | -13°F 1979 | 35% | 25% |
| Jan 6 | 32°F | 16°F | 53°F 2008 | -13°F 1999 | 35% | 25% |
| Jan 7 | 32°F | 16°F | 59°F 2008 | -16°F 1968 | 35% | 25% |
| Jan 8 | 32°F | 16°F | 56°F 1965 | -14°F 2014 | 35% | 26% |
| Jan 9 | 32°F | 16°F | 53°F 2002 | -15°F 1982 | 35% | 26% |
| Jan 10 | 31°F | 15°F | 52°F 1975 | -24°F 1982 | 35% | 26% |
| Jan 11 | 31°F | 15°F | 55°F 2018 | -16°F 1979 | 35% | 26% |
| Jan 12 | 31°F | 15°F | 58°F 2012 | -13°F 1974 | 35% | 26% |
| Jan 13 | 31°F | 15°F | 55°F 1961 | -12°F 1963 | 35% | 27% |
| Jan 14 | 31°F | 15°F | 47°F 2014 | -13°F 1994 | 35% | 27% |
| Jan 15 | 31°F | 15°F | 54°F 1953 | -22°F 1972 | 35% | 27% |
| Jan 16 | 30°F | 14°F | 53°F 1949 | -20°F 1977 | 35% | 28% |
| Jan 17 | 30°F | 14°F | 52°F 1990 | -24°F 1982 | 35% | 28% |
| Jan 18 | 30°F | 14°F | 53°F 1973 | -24°F 1994 | 35% | 28% |
| Jan 19 | 30°F | 14°F | 50°F 1973 | -23°F 1994 | 35% | 28% |
| Jan 20 | 30°F | 14°F | 50°F 1968 | -26°F 1985 | 35% | 28% |
| Jan 21 | 30°F | 14°F | 54°F 1957 | -19°F 1963 | 35% | 29% |
| Jan 22 | 30°F | 14°F | 55°F 2017 | -12°F 1951 | 35% | 29% |
| Jan 23 | 30°F | 14°F | 49°F 1964 | -24°F 1963 | 35% | 29% |
| Jan 24 | 30°F | 13°F | 50°F 1981 | -15°F 1963 | 35% | 29% |
| Jan 25 | 30°F | 13°F | 59°F 1950 | -12°F 1963 | 35% | 30% |
| Jan 26 | 30°F | 13°F | 57°F 1973 | -14°F 1957 | 35% | 30% |
| Jan 27 | 30°F | 13°F | 55°F 2002 | -14°F 1963 | 36% | 30% |
| Jan 28 | 30°F | 13°F | 48°F 2008 | -18°F 1966 | 36% | 30% |
| Jan 29 | 30°F | 13°F | 48°F 1968 | -22°F 1966 | 36% | 30% |
| Jan 30 | 30°F | 14°F | 60°F 2013 | -27°F 1951 | 36% | 31% |
| Jan 31 | 30°F | 14°F | 56°F 1989 | -17°F 1996 | 37% | 31% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:23 AM, sunset 4:28 PM
- January 31
- sunrise 7:08 AM, sunset 5:03 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00479046 (West Allis), public domain. Records: NOAA GHCN-Daily, station USC00475474, 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.