Climate averages 1991–2020
Joliet weather
in February.
A cold, moderately wet month: the 11th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a cold month in Joliet: daytime highs average 2.4°C and nights cool to about -6.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 51 mm of rain on roughly 7 days, which makes February a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 35 min on an average February day.
The nearest other city in this atlas is Bolingbrook (19 km away). In February its highs average 1.8°C, 0.6°C cooler than Joliet, with 50 mm of precipitation.
Among the 498 cities listed in the United States, Joliet ranks 428th of 498 for the warmest February highs and joint 148th of 498 for the driest February (rainfall, lowest first). The mean February high of those 498 cities is 11.1°C; Joliet is 8.8°C cooler than that mean.
From February to March, average highs rise by 6.3°C to 8.7°C, and monthly rainfall rises from 51 mm to 72 mm.
The annual picture
February in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Joliet climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.2°C-8.1°C | -8.1°C | 58 | 8.6 | 9.510 h |
| February, selected | 2.4°C-6.5°C | -6.5°C | 51 | 7.2 | 10.611 h |
| March | 8.7°C-1.2°C | -1.2°C | 72 | 10.2 | 11.912 h |
| April | 15.4°C4.8°C | 4.8°C | 112 | 12.4 | 13.313 h |
| May | 21.2°C11.0°C | 11.0°C | 116 | 12.5 | 14.514 h |
| June | 26.3°C16.6°C | 16.6°C | 110 | 11.7 | 15.115 h |
| July | 28.2°C19.1°C | 19.1°C | 95 | 11.3 | 14.915 h |
| August | 27.4°C18.5°C | 18.5°C | 93 | 10.2 | 13.814 h |
| September | 23.8°C14.5°C | 14.5°C | 75 | 8.3 | 12.513 h |
| October | 16.9°C8.2°C | 8.2°C | 81 | 9.2 | 11.111 h |
| November | 9.1°C1.4°C | 1.4°C | 69 | 8.6 | 9.910 h |
| December | 2.6°C-4.5°C | -4.5°C | 56 | 8.2 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
February in nearby cities
- Bolingbrook in FebruaryUnited States · 19 kmHigh 1.8°C · Low -6.9°C · 50 mm precipitation
- Naperville in FebruaryUnited States · 29 kmHigh 1.7°C · Low -7.1°C · 50 mm precipitation
- Aurora (Illinois), United States in FebruaryUnited States · 33 kmHigh 1.6°C · Low -7.2°C · 50 mm precipitation
- Cicero in FebruaryUnited States · 45 kmHigh 1.5°C · Low -6.6°C · 54 mm precipitation
- Hammond in FebruaryUnited States · 49 kmHigh 1.4°C · Low -6.1°C · 54 mm precipitation
- Chicago in FebruaryUnited States · 51 kmHigh 0.9°C · Low -6.5°C · 54 mm precipitation
- Schaumburg in FebruaryUnited States · 57 kmHigh 1.2°C · Low -7.5°C · 49 mm precipitation
- Elgin in FebruaryUnited States · 59 kmHigh 1.2°C · Low -7.5°C · 49 mm precipitation
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Joliet) is explained once on the Joliet year overview and on the Sources, method and limits page.