Waterloo, Iowa vs Mason City Climate
95%matchWaterloo vs Mason City: a 95% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Waterloo gets 35 in (901 mm) of rain a year and Mason City 34 in (856 mm). July is the warmest month in both, with highs of 85°F (30°C) in Waterloo and 84°F (29°C) in Mason City.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
WaterlooMason Citysolid = high, dashed = low
Rain (in per month)
WaterlooMason City
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Waterloo | Mason City | Waterloo | Mason City | Waterloo | Mason City | |
| Jan | 28°F(-2°C) | 26°F(-3°C) | 10°F(-12°C) | 9°F(-13°C) | 0.9 in(22 mm) | 0.8 in(20 mm) |
| Feb | 33°F(1°C) | 30°F(-1°C) | 15°F(-10°C) | 13°F(-11°C) | 1.2 in(30 mm) | 1.0 in(25 mm) |
| Mar | 47°F(8°C) | 44°F(7°C) | 27°F(-3°C) | 26°F(-3°C) | 2.2 in(55 mm) | 1.9 in(47 mm) |
| Apr | 60°F(16°C) | 58°F(15°C) | 38°F(3°C) | 37°F(3°C) | 3.9 in(99 mm) | 3.2 in(82 mm) |
| May | 72°F(22°C) | 71°F(21°C) | 49°F(10°C) | 48°F(9°C) | 4.7 in(120 mm) | 4.5 in(115 mm) |
| Jun | 82°F(28°C) | 81°F(27°C) | 60°F(15°C) | 59°F(15°C) | 5.0 in(128 mm) | 5.2 in(133 mm) |
| Jul | 85°F(30°C) | 84°F(29°C) | 63°F(17°C) | 63°F(17°C) | 4.5 in(114 mm) | 4.2 in(106 mm) |
| Aug | 83°F(28°C) | 82°F(28°C) | 61°F(16°C) | 60°F(16°C) | 3.8 in(96 mm) | 4.1 in(104 mm) |
| Sep | 76°F(25°C) | 75°F(24°C) | 52°F(11°C) | 52°F(11°C) | 3.3 in(85 mm) | 3.6 in(92 mm) |
| Oct | 62°F(17°C) | 61°F(16°C) | 40°F(5°C) | 39°F(4°C) | 2.8 in(70 mm) | 2.5 in(64 mm) |
| Nov | 46°F(8°C) | 44°F(7°C) | 28°F(-2°C) | 26°F(-3°C) | 1.8 in(45 mm) | 1.4 in(36 mm) |
| Dec | 33°F(0°C) | 30°F(-1°C) | 17°F(-9°C) | 15°F(-10°C) | 1.5 in(37 mm) | 1.3 in(32 mm) |
1991–2020 averages, by calendar month.