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Weather & Climate
Marcus, Iowa, United States
Overview
Available climate summaries for Marcus. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
8.6°C
Summer Avg
22.5°C
Winter Avg
-6.3°C
Record High
42.3°C
Record Low
-36.8°C
Annual Precipitation
786 mm
Avg Humidity
73%
Summer Humidity
68%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10.8° | -7.7° | -36.8° | 17.4 | 84% | 62 | 61.1 |
| Feb | 18.7° | -6.1° | -30.5° | 23 | 81% | 86 | 64.3 |
| Mar | 27.8° | 1.5° | -27.6° | 42.8 | 74% | 119 | 59.1 |
| Apr | 30.8° | 8.7° | -13.6° | 80.1 | 68% | 147 | 72 |
| May | 34.4° | 15.1° | -3.4° | 106.3 | 68% | 176 | 53.6 |
| Jun | 39.2° | 21.2° | 6.2° | 119.7 | 70% | 191 | 52.6 |
| Jul | 42.3° | 24° | 9° | 86.2 | 67% | 205 | 39.2 |
| Aug | 40.1° | 22.4° | 7.3° | 94.5 | 66% | 173 | 44.8 |
| Sep | 37.1° | 17.9° | 1.5° | 90.6 | 66% | 134 | 47.2 |
| Oct | 30.9° | 9.2° | -8.9° | 62.3 | 69% | 97 | 60.4 |
| Nov | 24.4° | 1.9° | -17.4° | 33 | 74% | 65 | 59.6 |
| Dec | 13.5° | -5.1° | -27.1° | 30.1 | 84% | 52 | 66.6 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-23.
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