McLean County Weather in January
Average highs run from 43°F on January 1 to 43°F on January 31, and lows from 28°F to 26°F. Normal precipitation for the month is 3.26 in over about 9 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
- 43°F
- Average low
- 26°F
- Precipitation
- 3.26 in
- Snowfall
- 0.9 in
- Record high
- 77°FJan 25, 1950
- Record low
- -20°FJan 19, 1994
- Chance of a freeze
- 100%
- Daylight
- 9 h 38 min to 10 h 19 min
- Cloud cover
- 68%
- Humidity
- 85%
- Dew point
- 28°F
- Wind
- 9.6 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 | 43°F | 28°F | 72°F 1952 | -2°F 1968 | 31% | 2% |
| Jan 2 | 43°F | 28°F | 72°F 2006 | 0°F 2018 | 31% | 2% |
| Jan 3 | 43°F | 28°F | 70°F 1997 | -2°F 2001 | 31% | 2% |
| Jan 4 | 43°F | 27°F | 69°F 1997 | 2°F 1969 | 31% | 2% |
| Jan 5 | 43°F | 27°F | 68°F 2004 | -2°F 1959 | 31% | 2% |
| Jan 6 | 43°F | 27°F | 68°F 1998 | -1°F 2014 | 31% | 2% |
| Jan 7 | 43°F | 27°F | 70°F 2008 | -5°F 1970 | 31% | 2% |
| Jan 8 | 42°F | 27°F | 68°F 1965 | -3°F 1970 | 31% | 2% |
| Jan 9 | 42°F | 26°F | 68°F 2008 | 0°F 1970 | 31% | 2% |
| Jan 10 | 42°F | 26°F | 66°F 2020 | -11°F 1982 | 30% | 2% |
| Jan 11 | 42°F | 26°F | 69°F 2023 | -15°F 1977 | 30% | 2% |
| Jan 12 | 42°F | 26°F | 70°F 1960 | 0°F 1977 | 30% | 2% |
| Jan 13 | 42°F | 26°F | 71°F 1960 | -5°F 1977 | 30% | 2% |
| Jan 14 | 42°F | 26°F | 69°F 1952 | 1°F 1997 | 30% | 2% |
| Jan 15 | 42°F | 26°F | 68°F 1949 | 2°F 1972 | 30% | 2% |
| Jan 16 | 42°F | 26°F | 71°F 1990 | -8°F 1972 | 29% | 2% |
| Jan 17 | 42°F | 26°F | 69°F 1952 | -17°F 1977 | 29% | 2% |
| Jan 18 | 42°F | 26°F | 70°F 1949 | -7°F 1994 | 29% | 2% |
| Jan 19 | 42°F | 25°F | 70°F 1951 | -20°F 1994 | 29% | 2% |
| Jan 20 | 42°F | 25°F | 69°F 2006 | -14°F 1985 | 29% | 2% |
| Jan 21 | 42°F | 25°F | 74°F 1986 | -15°F 1984 | 28% | 2% |
| Jan 22 | 42°F | 25°F | 70°F 1999 | -5°F 1970 | 28% | 2% |
| Jan 23 | 42°F | 25°F | 73°F 1967 | -5°F 1963 | 28% | 2% |
| Jan 24 | 42°F | 26°F | 72°F 1972 | -16°F 1963 | 28% | 2% |
| Jan 25 | 43°F | 26°F | 77°F 1950 | 4°F 1961 | 28% | 2% |
| Jan 26 | 43°F | 26°F | 74°F 1950 | 0°F 1978 | 28% | 2% |
| Jan 27 | 43°F | 26°F | 69°F 1952 | 0°F 1986 | 28% | 2% |
| Jan 28 | 43°F | 26°F | 71°F 2002 | -14°F 1963 | 28% | 2% |
| Jan 29 | 43°F | 26°F | 73°F 1975 | -6°F 1985 | 28% | 2% |
| Jan 30 | 43°F | 26°F | 70°F 2002 | -10°F 1966 | 28% | 2% |
| Jan 31 | 43°F | 26°F | 70°F 1989 | -5°F 1965 | 27% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:04 AM, sunset 4:42 PM
- January 31
- sunrise 6:53 AM, sunset 5:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00151227 (Calhoun Lock 2), public domain. Records: NOAA GHCN-Daily, station USC00155067, 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.