Peoria, IL weather in January
Peoria is cold in January, with some rain and some snow: highs average 34°F and nights drop to about 18°F. There are about 10 days with rain or snow. Snowfall averages about 7.7 in. This is the depth of winter in Peoria. Pack for serious cold.
- Normal high
- 34°F
- Normal low
- 18°F
- Wet days
- 10
- 2.1 in total
- Snowfall
- 7.7 in
- snow on the ground 14 days
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 34°F | 34°F |
| Normal low | 19°F | 18°F |
| Chance of a wet day | 32% | 31% |
| Sunrise / sunset | 7:22 am / 4:41 pm | 7:09 am / 5:14 pm |
| Daylight | 9.3 h | 10.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical January day
- 6 am22°Fdew point 17°F
- 9 am24°Fdew point 18°F
- Noon29°Fdew point 20°F
- 3 pm31°Fdew point 21°F
- 6 pm28°Fdew point 20°F
- 9 pm26°Fdew point 20°F
NOAA hourly normals (local standard time) from Peoria Gtr Peoria Airport (5 mi away); average wind 9 mph; clear or few clouds in 46% of daytime hours, mostly cloudy or overcast in 51%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below28 of 31
- Snow on the groundsnow depth 1 in or more14 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain and snow in January
Normal precipitation is 2.1 in; a dry January brings about 1.1 in and a wet one about 3.0 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 7.7 in, with about 3 days of an inch or more.
How January varies from year to year
- Warmest January, 1991-20202006: average high 44°F
- Coolest January1994: average high 25°F
- Wettest January2005: 4.2 in
- Driest January2003: 0.5 in
- Highest reading67°F (January 7, 2008)
- Lowest reading-21°F (January 16, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 39°F | 34°F | 39°F |
| Normal low | 23°F | 18°F | 21°F |
| Wet days | 10 | 10 | 9 |
| Comfortable days | 0 | 0 | 1 |
| Daylight | 9.3 h | 9.6 h | 10.7 h |
Highs change by -5°F from December and +5°F into February.
Nearby alternatives in January
- Warmer: St. Louis, MO146 mi · high 40°F · 9 wet days
- Cooler: Madison, WI165 mi · high 27°F · 11 wet days
How Peoria ranks in January
- Normal high305th warmest of 378 cities; 2nd of 8 in Illinois
- Wet days204th driest of 378
- Comfortable days251st most of 339
What to pack for Peoria in January
- A warm jacket – lows near 18°F, highs near 34°F
- A rain jacket or umbrella – rain or snow on about 10 days
- Waterproof boots – snow on the ground on about 14 days
- A hat and gloves – about 28 freezing nights
Heating and cooling
January has 1221 heating degree days and 0 cooling degree days (base 65°F), 18% of the year's total heating and cooling demand.
Questions
How cold is Peoria in January?
The normal high is 34°F and the normal low is 18°F. From 1991 to 2020 the coldest January reading was -21°F (most recently on January 16, 2009).
Does it rain a lot in Peoria in January?
About 10 days in January have at least 0.01 in of precipitation, and the normal total is 2.1 in. The wettest January in 1991-2020 was in 2005 (4.2 in); the driest was in 2003 (0.5 in).
Does it snow in Peoria in January?
Yes. Normal snowfall in January is 7.7 in, and snow covers the ground on about 14 days.
Is January a good time to visit Peoria?
January ranks 12th of 12 months on our comfort score for Peoria (28 out of 100). It has almost no comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Peoria Gtr Peoria Airport (USW00014842), 5.3 mi WSW of the city center, 650 ft (148 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Greater Peoria Regional Airport (725320-14842), 5.3 mi WSW of the city center, 655 ft (153 ft higher than the city). Hourly observations, 1991-2020.