Willowbrook Weather in January
Average highs run from 41°F on January 1 to 40°F on January 31, and lows from 28°F to 25°F. Normal precipitation for the month is 3.42 in over about 11 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
- 40°F
- Average low
- 26°F
- Precipitation
- 3.42 in
- Snowfall
- 9.1 in
- Record high
- 73°FJan 7, 2007
- Record low
- -10°FJan 21, 1985
- Chance of a freeze
- 100%
- Daylight
- 9 h 20 min to 10 h 06 min
- Cloud cover
- 69%
- Humidity
- 82%
- Dew point
- 29°F
- Wind
- 14.5 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 | 41°F | 28°F | 63°F 1973 | 10°F 1997 | 35% | 11% |
| Jan 2 | 41°F | 27°F | 64°F 2005 | 7°F 1999 | 35% | 12% |
| Jan 3 | 41°F | 27°F | 62°F 1979 | 1°F 2001 | 35% | 12% |
| Jan 4 | 41°F | 27°F | 65°F 2000 | 1°F 2001 | 35% | 12% |
| Jan 5 | 41°F | 27°F | 67°F 1998 | 3°F 1981 | 35% | 12% |
| Jan 6 | 40°F | 27°F | 68°F 2007 | 3°F 1996 | 35% | 13% |
| Jan 7 | 40°F | 26°F | 73°F 2007 | 1°F 2014 | 35% | 13% |
| Jan 8 | 40°F | 26°F | 63°F 2008 | 1°F 1981 | 35% | 13% |
| Jan 9 | 40°F | 26°F | 69°F 1998 | -5°F 1981 | 35% | 13% |
| Jan 10 | 40°F | 26°F | 67°F 1998 | -1°F 2004 | 35% | 13% |
| Jan 11 | 40°F | 26°F | 65°F 1975 | -4°F 1988 | 35% | 13% |
| Jan 12 | 40°F | 26°F | 61°F 2014 | -7°F 1981 | 35% | 14% |
| Jan 13 | 40°F | 25°F | 61°F 1995 | -8°F 1981 | 35% | 14% |
| Jan 14 | 40°F | 25°F | 70°F 1995 | 5°F 1974 | 35% | 14% |
| Jan 15 | 40°F | 25°F | 69°F 1995 | -3°F 1988 | 35% | 14% |
| Jan 16 | 40°F | 25°F | 67°F 1995 | -1°F 1994 | 35% | 14% |
| Jan 17 | 40°F | 25°F | 63°F 1990 | -6°F 1982 | 34% | 15% |
| Jan 18 | 40°F | 25°F | 65°F 1990 | -3°F 1977 | 34% | 15% |
| Jan 19 | 40°F | 25°F | 65°F 1986 | -7°F 1994 | 34% | 15% |
| Jan 20 | 40°F | 25°F | 57°F 2013 | -4°F 1994 | 34% | 15% |
| Jan 21 | 40°F | 25°F | 62°F 2006 | -10°F 1985 | 34% | 15% |
| Jan 22 | 40°F | 25°F | 64°F 2006 | -1°F 1985 | 34% | 15% |
| Jan 23 | 40°F | 25°F | 59°F 1973 | -2°F 1976 | 34% | 15% |
| Jan 24 | 40°F | 25°F | 63°F 1989 | 1°F 1987 | 34% | 15% |
| Jan 25 | 40°F | 25°F | 61°F 1993 | 0°F 2014 | 34% | 15% |
| Jan 26 | 40°F | 25°F | 60°F 2010 | 5°F 1982 | 34% | 15% |
| Jan 27 | 40°F | 25°F | 68°F 1974 | -6°F 1994 | 34% | 15% |
| Jan 28 | 40°F | 25°F | 67°F 1974 | -2°F 1987 | 34% | 15% |
| Jan 29 | 40°F | 25°F | 62°F 2002 | -2°F 1977 | 34% | 15% |
| Jan 30 | 40°F | 25°F | 71°F 2002 | -1°F 1977 | 34% | 15% |
| Jan 31 | 40°F | 25°F | 67°F 2013 | 6°F 1977 | 34% | 15% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:20 AM, sunset 4:40 PM
- January 31
- sunrise 7:07 AM, sunset 5:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014734 (Newark Intl AP), public domain. Records: NOAA GHCN-Daily, station USC00282023, 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.