Sioux City vs Waterloo, Iowa Climate
95%matchSioux City and Waterloo are a 95% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Sioux City gets 27 in (691 mm) of rain a year and Waterloo 35 in (901 mm). July is the warmest month in both, with highs of 87°F (31°C) in Sioux City and 85°F (30°C) in Waterloo.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Sioux CityWaterloosolid = high, dashed = low
Rain (in per month)
Sioux CityWaterloo
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Sioux City | Waterloo | Sioux City | Waterloo | Sioux City | Waterloo | |
| Jan | 30°F(-1°C) | 28°F(-2°C) | 11°F(-12°C) | 10°F(-12°C) | 0.6 in(15 mm) | 0.9 in(22 mm) |
| Feb | 35°F(2°C) | 33°F(1°C) | 15°F(-9°C) | 15°F(-10°C) | 0.7 in(19 mm) | 1.2 in(30 mm) |
| Mar | 49°F(9°C) | 47°F(8°C) | 27°F(-3°C) | 27°F(-3°C) | 1.7 in(42 mm) | 2.2 in(55 mm) |
| Apr | 62°F(17°C) | 60°F(16°C) | 38°F(3°C) | 38°F(3°C) | 3.0 in(76 mm) | 3.9 in(99 mm) |
| May | 73°F(23°C) | 72°F(22°C) | 49°F(10°C) | 49°F(10°C) | 4.2 in(106 mm) | 4.7 in(120 mm) |
| Jun | 83°F(28°C) | 82°F(28°C) | 60°F(16°C) | 60°F(15°C) | 4.5 in(114 mm) | 5.0 in(128 mm) |
| Jul | 87°F(31°C) | 85°F(30°C) | 65°F(18°C) | 63°F(17°C) | 2.9 in(73 mm) | 4.5 in(114 mm) |
| Aug | 85°F(29°C) | 83°F(28°C) | 62°F(17°C) | 61°F(16°C) | 3.2 in(82 mm) | 3.8 in(96 mm) |
| Sep | 78°F(25°C) | 76°F(25°C) | 53°F(12°C) | 52°F(11°C) | 2.6 in(66 mm) | 3.3 in(85 mm) |
| Oct | 64°F(18°C) | 62°F(17°C) | 40°F(4°C) | 40°F(5°C) | 2.0 in(51 mm) | 2.8 in(70 mm) |
| Nov | 47°F(8°C) | 46°F(8°C) | 26°F(-3°C) | 28°F(-2°C) | 1.0 in(26 mm) | 1.8 in(45 mm) |
| Dec | 33°F(1°C) | 33°F(0°C) | 15°F(-9°C) | 17°F(-9°C) | 0.8 in(21 mm) | 1.5 in(37 mm) |
1991–2020 averages, by calendar month.