Upper Alton Weather in January
Average highs run from 40°F on January 1 to 40°F on January 31, and lows from 23°F to 22°F. Normal precipitation for the month is 2.53 in over about 7 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
- 39°F
- Average low
- 22°F
- Precipitation
- 2.53 in
- Snowfall
- 3.7 in
- Record high
- 77°FJan 9, 2008
- Record low
- -16°FJan 10, 1982
- Chance of a freeze
- 100%
- Daylight
- 9 h 30 min to 10 h 13 min
- Cloud cover
- 67%
- Humidity
- 84%
- Dew point
- 23°F
- Wind
- 11.0 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 | 40°F | 23°F | 67°F 1965 | -9°F 1974 | 25% | 8% |
| Jan 2 | 39°F | 23°F | 64°F 2006 | -9°F 1974 | 25% | 9% |
| Jan 3 | 39°F | 23°F | 68°F 1997 | -6°F 1979 | 25% | 9% |
| Jan 4 | 39°F | 23°F | 69°F 2023 | -2°F 1959 | 25% | 9% |
| Jan 5 | 39°F | 23°F | 68°F 1997 | -4°F 1959 | 25% | 9% |
| Jan 6 | 39°F | 22°F | 66°F 1946 | -1°F 1979 | 25% | 9% |
| Jan 7 | 39°F | 22°F | 70°F 1965 | -7°F 1968 | 25% | 9% |
| Jan 8 | 39°F | 22°F | 71°F 2008 | -9°F 1979 | 25% | 8% |
| Jan 9 | 39°F | 22°F | 77°F 2008 | -8°F 1979 | 24% | 8% |
| Jan 10 | 39°F | 22°F | 71°F 2008 | -16°F 1982 | 24% | 8% |
| Jan 11 | 39°F | 22°F | 60°F 2020 | -16°F 1982 | 24% | 8% |
| Jan 12 | 39°F | 22°F | 65°F 1960 | -9°F 1974 | 24% | 8% |
| Jan 13 | 39°F | 22°F | 67°F 2005 | -9°F 1974 | 24% | 8% |
| Jan 14 | 39°F | 21°F | 61°F 1946 | -5°F 1979 | 24% | 8% |
| Jan 15 | 39°F | 21°F | 64°F 1949 | -8°F 1972 | 24% | 8% |
| Jan 16 | 39°F | 21°F | 62°F 1952 | -11°F 1977 | 24% | 8% |
| Jan 17 | 39°F | 21°F | 66°F 1952 | -15°F 1977 | 23% | 8% |
| Jan 18 | 39°F | 21°F | 66°F 1946 | -12°F 1977 | 23% | 8% |
| Jan 19 | 39°F | 21°F | 71°F 1952 | -8°F 1994 | 23% | 8% |
| Jan 20 | 39°F | 21°F | 66°F 2006 | -15°F 1985 | 23% | 8% |
| Jan 21 | 39°F | 21°F | 64°F 2006 | -15°F 1985 | 23% | 8% |
| Jan 22 | 39°F | 21°F | 71°F 1986 | -10°F 1970 | 23% | 7% |
| Jan 23 | 39°F | 21°F | 69°F 1967 | -10°F 1963 | 23% | 7% |
| Jan 24 | 39°F | 21°F | 72°F 1950 | -5°F 1963 | 23% | 7% |
| Jan 25 | 39°F | 21°F | 72°F 1950 | 0°F 1961 | 23% | 7% |
| Jan 26 | 39°F | 21°F | 64°F 1950 | -6°F 2026 | 23% | 7% |
| Jan 27 | 40°F | 21°F | 65°F 1944 | -8°F 1948 | 23% | 7% |
| Jan 28 | 40°F | 21°F | 63°F 1999 | -8°F 1948 | 23% | 7% |
| Jan 29 | 40°F | 22°F | 70°F 2013 | -7°F 1966 | 23% | 7% |
| Jan 30 | 40°F | 22°F | 69°F 2013 | -3°F 1951 | 23% | 7% |
| Jan 31 | 40°F | 22°F | 68°F 2008 | -6°F 1965 | 23% | 7% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:19 AM, sunset 4:49 PM
- January 31
- sunrise 7:08 AM, sunset 5:21 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00110137 (Alton - Melvin Price L&d), public domain. Records: NOAA GHCN-Daily, station USC00110137, 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.