Joliet vs Peoria, Illinois Climate
98%matchJoliet and Peoria are a 98% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Joliet gets 39 in (986 mm) of rain a year and Peoria 37 in (942 mm). July is the warmest month in both, with highs of 86°F (30°C) in Joliet and 87°F (30°C) in Peoria.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
JolietPeoriasolid = high, dashed = low
Rain (in per month)
JolietPeoria
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Joliet | Peoria | Joliet | Peoria | Joliet | Peoria | |
| Jan | 33°F(1°C) | 34°F(1°C) | 17°F(-9°C) | 17°F(-8°C) | 1.7 in(43 mm) | 1.7 in(44 mm) |
| Feb | 38°F(3°C) | 39°F(4°C) | 20°F(-7°C) | 21°F(-6°C) | 1.6 in(40 mm) | 1.7 in(42 mm) |
| Mar | 49°F(10°C) | 52°F(11°C) | 30°F(-1°C) | 32°F(0°C) | 2.4 in(61 mm) | 2.7 in(68 mm) |
| Apr | 62°F(17°C) | 64°F(18°C) | 40°F(4°C) | 42°F(5°C) | 4.5 in(114 mm) | 4.1 in(105 mm) |
| May | 73°F(23°C) | 75°F(24°C) | 50°F(10°C) | 52°F(11°C) | 4.5 in(115 mm) | 4.3 in(110 mm) |
| Jun | 82°F(28°C) | 83°F(29°C) | 60°F(16°C) | 62°F(17°C) | 4.8 in(122 mm) | 4.7 in(119 mm) |
| Jul | 86°F(30°C) | 87°F(30°C) | 64°F(18°C) | 66°F(19°C) | 4.1 in(104 mm) | 4.1 in(105 mm) |
| Aug | 84°F(29°C) | 86°F(30°C) | 63°F(17°C) | 64°F(18°C) | 4.1 in(103 mm) | 2.9 in(73 mm) |
| Sep | 78°F(26°C) | 79°F(26°C) | 55°F(13°C) | 55°F(13°C) | 3.5 in(89 mm) | 3.3 in(84 mm) |
| Oct | 65°F(18°C) | 66°F(19°C) | 43°F(6°C) | 44°F(7°C) | 2.9 in(74 mm) | 2.8 in(72 mm) |
| Nov | 50°F(10°C) | 51°F(11°C) | 32°F(0°C) | 33°F(0°C) | 2.6 in(65 mm) | 2.5 in(64 mm) |
| Dec | 38°F(3°C) | 39°F(4°C) | 22°F(-5°C) | 23°F(-5°C) | 2.2 in(56 mm) | 2.2 in(56 mm) |
1991–2020 averages, by calendar month.