Weather & Climate
Preston, Iowa, United States
Overview
Available climate summaries for Preston. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
9.3°C
Summer Avg
22.4°C
Winter Avg
-4.9°C
Record High
41.5°C
Record Low
-36°C
Annual Precipitation
948.4 mm
Avg Humidity
78%
Summer Humidity
75%
Winter Humidity
86%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.6° | -6.4° | -36° | 32.2 | 86% | 56 | 58.4 |
| Feb | 20.4° | -4.8° | -26.4° | 38.9 | 84% | 79 | 69.6 |
| Mar | 25.6° | 2.4° | -25° | 58 | 78% | 116 | 63.3 |
| Apr | 28.1° | 9.4° | -9.7° | 93.6 | 75% | 142 | 63.1 |
| May | 33.8° | 15.7° | -2.9° | 110.7 | 76% | 173 | 57.2 |
| Jun | 37.3° | 21.3° | 5° | 132.6 | 77% | 184 | 48.6 |
| Jul | 41.5° | 23.5° | 8.5° | 106.6 | 75% | 194 | 41.8 |
| Aug | 38.5° | 22.5° | 7° | 102.6 | 73% | 168 | 35.8 |
| Sep | 38.4° | 18.3° | 1° | 91.8 | 73% | 132 | 49.5 |
| Oct | 30.9° | 10.4° | -5.8° | 77.5 | 75% | 90 | 54.1 |
| Nov | 22.9° | 3.2° | -15.8° | 53.4 | 80% | 59 | 55.6 |
| Dec | 20.4° | -3.5° | -27.9° | 50.5 | 87% | 44 | 68.1 |
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 2026-03-22.