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Weather & Climate
Le Mars, Iowa, United States
Overview
Climate data and monthly weather averages for Le Mars.
Key Metrics
Annual Avg
8.9°C
Summer Avg
22.9°C
Winter Avg
-6°C
Record High
43.4°C
Record Low
-36.3°C
Annual Precipitation
747.2 mm
Avg Humidity
72%
Summer Humidity
66%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 11.1° | -7.3° | -36.3° | 15.8 | 84% | 62 | 60.3 |
| Feb | 20.3° | -5.7° | -28.7° | 21 | 80% | 87 | 60.8 |
| Mar | 29.1° | 1.9° | -27.3° | 40 | 73% | 119 | 61.7 |
| Apr | 31.7° | 8.8° | -12.6° | 76.5 | 68% | 149 | 68.2 |
| May | 34.3° | 15.3° | -4.3° | 101.7 | 68% | 179 | 55.3 |
| Jun | 40.4° | 21.4° | 6.6° | 115.5 | 69% | 194 | 53.8 |
| Jul | 43.4° | 24.5° | 9.3° | 81.5 | 65% | 206 | 40.7 |
| Aug | 41.5° | 22.9° | 7.3° | 87.7 | 64% | 174 | 46.7 |
| Sep | 37.3° | 18.2° | 1.9° | 87.9 | 65% | 134 | 48 |
| Oct | 31.5° | 9.3° | -11° | 62.3 | 69% | 98 | 60.8 |
| Nov | 24° | 2° | -16.1° | 29.7 | 74% | 66 | 59.9 |
| Dec | 13.9° | -4.9° | -26.4° | 27.6 | 84% | 51 | 63 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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