Des Moines, Iowa vs Oswego, Illinois Climate
94%matchOn climate, Oswego is a 94% match for Des Moines. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Des Moines gets 34 in (876 mm) of rain a year and Oswego 39 in (990 mm). July is the warmest month in both, with highs of 87°F (31°C) in Des Moines and 85°F (29°C) in Oswego.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Des MoinesOswegosolid = high, dashed = low
Rain (in per month)
Des MoinesOswego
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Des Moines | Oswego | Des Moines | Oswego | Des Moines | Oswego | |
| Jan | 32°F(0°C) | 32°F(0°C) | 13°F(-10°C) | 15°F(-9°C) | 1.0 in(25 mm) | 1.7 in(44 mm) |
| Feb | 37°F(3°C) | 36°F(2°C) | 17°F(-8°C) | 19°F(-7°C) | 1.3 in(33 mm) | 1.6 in(41 mm) |
| Mar | 50°F(10°C) | 48°F(9°C) | 29°F(-2°C) | 29°F(-2°C) | 2.1 in(53 mm) | 2.3 in(59 mm) |
| Apr | 63°F(17°C) | 61°F(16°C) | 40°F(5°C) | 38°F(4°C) | 3.8 in(96 mm) | 4.4 in(113 mm) |
| May | 74°F(23°C) | 73°F(23°C) | 51°F(11°C) | 49°F(9°C) | 4.7 in(119 mm) | 4.8 in(121 mm) |
| Jun | 83°F(28°C) | 82°F(28°C) | 62°F(16°C) | 59°F(15°C) | 5.0 in(128 mm) | 4.9 in(124 mm) |
| Jul | 87°F(31°C) | 85°F(29°C) | 66°F(19°C) | 63°F(17°C) | 3.6 in(91 mm) | 4.0 in(101 mm) |
| Aug | 85°F(30°C) | 83°F(28°C) | 63°F(17°C) | 61°F(16°C) | 3.9 in(98 mm) | 4.0 in(102 mm) |
| Sep | 78°F(26°C) | 77°F(25°C) | 55°F(13°C) | 53°F(12°C) | 3.3 in(83 mm) | 3.5 in(90 mm) |
| Oct | 65°F(18°C) | 64°F(18°C) | 42°F(6°C) | 42°F(5°C) | 2.7 in(69 mm) | 3.0 in(75 mm) |
| Nov | 49°F(9°C) | 49°F(9°C) | 29°F(-1°C) | 31°F(-1°C) | 1.7 in(44 mm) | 2.6 in(66 mm) |
| Dec | 36°F(2°C) | 36°F(2°C) | 19°F(-7°C) | 20°F(-6°C) | 1.5 in(37 mm) | 2.1 in(54 mm) |
1991–2020 averages, by calendar month.