Janesville vs Marshalltown Climate
99%matchOn climate, Marshalltown is a 99% match for Janesville. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Janesville gets 35 in (887 mm) of rain a year and Marshalltown 35 in (884 mm). July is the warmest month in both, with highs of 84°F (29°C) in Janesville and 84°F (29°C) in Marshalltown.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
JanesvilleMarshalltownsolid = high, dashed = low
Rain (in per month)
JanesvilleMarshalltown
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Janesville | Marshalltown | Janesville | Marshalltown | Janesville | Marshalltown | |
| Jan | 29°F(-2°C) | 29°F(-2°C) | 12°F(-11°C) | 11°F(-12°C) | 1.3 in(32 mm) | 0.9 in(24 mm) |
| Feb | 33°F(0°C) | 34°F(1°C) | 15°F(-9°C) | 15°F(-10°C) | 1.3 in(34 mm) | 1.2 in(30 mm) |
| Mar | 45°F(7°C) | 47°F(8°C) | 26°F(-3°C) | 27°F(-3°C) | 2.2 in(55 mm) | 2.0 in(52 mm) |
| Apr | 58°F(15°C) | 61°F(16°C) | 36°F(2°C) | 38°F(3°C) | 3.6 in(92 mm) | 3.6 in(92 mm) |
| May | 71°F(22°C) | 72°F(22°C) | 47°F(9°C) | 49°F(10°C) | 3.6 in(91 mm) | 4.5 in(114 mm) |
| Jun | 80°F(27°C) | 81°F(27°C) | 57°F(14°C) | 59°F(15°C) | 4.6 in(116 mm) | 5.4 in(137 mm) |
| Jul | 84°F(29°C) | 84°F(29°C) | 62°F(16°C) | 63°F(17°C) | 3.7 in(94 mm) | 3.7 in(95 mm) |
| Aug | 82°F(28°C) | 82°F(28°C) | 59°F(15°C) | 60°F(16°C) | 3.9 in(99 mm) | 3.9 in(100 mm) |
| Sep | 75°F(24°C) | 77°F(25°C) | 51°F(11°C) | 52°F(11°C) | 4.1 in(103 mm) | 3.7 in(93 mm) |
| Oct | 62°F(17°C) | 63°F(17°C) | 40°F(4°C) | 40°F(4°C) | 2.7 in(69 mm) | 2.8 in(71 mm) |
| Nov | 47°F(8°C) | 47°F(8°C) | 29°F(-2°C) | 28°F(-2°C) | 2.2 in(55 mm) | 1.6 in(40 mm) |
| Dec | 34°F(1°C) | 33°F(1°C) | 18°F(-8°C) | 16°F(-9°C) | 1.9 in(47 mm) | 1.4 in(36 mm) |
1991–2020 averages, by calendar month.