Aurora, IL weather in January
Aurora is cold in January, with some rain and some snow: highs average 31°F and nights drop to about 16°F. There are about 9 days with rain or snow. Snowfall averages about 9.1 in. This is the depth of winter in Aurora. Pack for serious cold.
- Normal high
- 31°F
- Normal low
- 16°F
- Wet days
- 9
- 1.9 in total
- Snowfall
- 9.1 in
- snow on the ground 16 days
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 32°F | 31°F |
| Normal low | 18°F | 16°F |
| Chance of a wet day | 29% | 28% |
| Sunrise / sunset | 7:20 am / 4:33 pm | 7:06 am / 5:06 pm |
| Daylight | 9.2 h | 10.0 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 am21°Fdew point 16°F
- 9 am22°Fdew point 17°F
- Noon27°Fdew point 19°F
- 3 pm28°Fdew point 19°F
- 6 pm25°Fdew point 19°F
- 9 pm24°Fdew point 18°F
NOAA hourly normals (local standard time) from West Chicago Dupage Airport (11 mi away); average wind 11 mph.
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 snow9 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below29 of 31
- Snow on the groundsnow depth 1 in or more16 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain and snow in January
Normal precipitation is 1.9 in; a dry January brings about 1.2 in and a wet one about 2.6 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 9.1 in, with about 4 days of an inch or more.
How January varies from year to year
- Warmest January, 1991-20202006: average high 42°F
- Coolest January2014: average high 22°F
- Wettest January2005: 4.1 in
- Driest January2003: 0.4 in
- Highest reading64°F (January 7, 2008)
- Lowest reading-25°F (January 31, 2019)
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 | 36°F | 31°F | 35°F |
| Normal low | 22°F | 16°F | 20°F |
| Wet days | 9 | 9 | 8 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 9.2 h | 9.6 h | 10.6 h |
Highs change by -5°F from December and +4°F into February.
Nearby alternatives in January
- Warmer: Springfield, IL152 mi · high 36°F · 10 wet days
- Cooler: Green Bay, WI191 mi · high 26°F · 11 wet days
How Aurora ranks in January
- Normal high343rd warmest of 378 cities; 5th of 8 in Illinois
- Wet days171st driest of 378
- Comfortable days277th most of 339
What to pack for Aurora in January
- A warm jacket – lows near 16°F, highs near 31°F
- A rain jacket or umbrella – rain or snow on about 9 days
- Waterproof boots – snow on the ground on about 16 days
- A hat and gloves – about 29 freezing nights
Heating and cooling
January has 1294 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 Aurora in January?
The normal high is 31°F and the normal low is 16°F. From 1991 to 2020 the coldest January reading was -25°F (January 31, 2019).
Does it rain a lot in Aurora in January?
About 9 days in January have at least 0.01 in of precipitation, and the normal total is 1.9 in. The wettest January in 1991-2020 was in 2005 (4.1 in); the driest was in 2003 (0.4 in).
Does it snow in Aurora in January?
Yes. Normal snowfall in January is 9.1 in, and snow covers the ground on about 16 days.
Is January a good time to visit Aurora?
January ranks 12th of 12 months on our comfort score for Aurora (26 out of 100). It has almost no comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Aurora (USC00110338), 1.5 mi NNE of the city center, 660 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: West Chicago Dupage Airport (USW00094892), 11 mi NNE of the city center, 754 ft (79 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Chicago O'hare International Airport (725300-94846), 24 mi NE of the city center, 672 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).