+41.5252° · -88.0834° · ELEV 0m
Joliet
United States · Illinois
Monthly weather averages for Joliet, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
July → FebruaryClimate Overview
Joliet has a continental climate. The warmest month is July (28°C average high) and the coolest is January (0°C).
№ 02
1206 mm / yearRainfall by Month
Joliet sees 1206 mm of rain a year. The wettest month is June (158 mm); the driest is January (62 mm).
№ 03
June–SeptemberBest Time to Visit
June–September
15°C – 28°C · 11.0h sun
The best time to visit Joliet is June–September, when temperatures average 15°C–28°C with 11.0 sunshine hours per day.
Some visitors prefer April–May for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 0.1°C | -8.2°C | 62 mm | 5.0 h | 07:16 | 16:46 |
|---|---|---|---|---|---|---|
| February | 1.5°C | -8.4°C | 64 mm | 6.6 h | 06:47 | 17:25 |
| March | 8.7°C | -1.5°C | 89 mm | 7.6 h | 07:04 | 18:58 |
| April | 14.8°C | 3.7°C | 103 mm | 8.6 h | 06:12 | 19:31 |
| May | 21.3°C | 10.5°C | 133 mm | 9.8 h | 05:33 | 20:04 |
| June | 26.9°C | 16.2°C | 158 mm | 11.5 h | 05:17 | 20:27 |
| July | 27.9°C | 18.3°C | 130 mm | 11.7 h | 05:31 | 20:24 |
| August | 27.6°C | 18.0°C | 116 mm | 11.3 h | 06:01 | 19:52 |
| September | 24.8°C | 15.2°C | 97 mm | 9.6 h | 06:32 | 19:02 |
| October | 17.0°C | 8.2°C | 126 mm | 7.1 h | 07:04 | 18:11 |
| November | 9.0°C | 0.5°C | 63 mm | 6.2 h | 06:41 | 16:33 |
| December | 4.4°C | -3.2°C | 65 mm | 5.1 h | 07:11 | 16:23 |