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Weather & Climate
Plainfield, Indiana, United States
Overview
Climate data and monthly weather averages for Plainfield.
Key Metrics
Annual Avg
11.5°C
Summer Avg
23.1°C
Winter Avg
-1.1°C
Record High
40.8°C
Record Low
-27.9°C
Annual Precipitation
1193.4 mm
Avg Humidity
79%
Summer Humidity
76%
Winter Humidity
86%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 18.5° | -2.4° | -27.9° | 81.2 | 86% | 57 | 51 |
| Feb | 22.1° | -0.9° | -23.9° | 72 | 85% | 73 | 51.3 |
| Mar | 27° | 5° | -15.8° | 98.3 | 82% | 113 | 52.8 |
| Apr | 27.7° | 11.7° | -5.2° | 118.8 | 79% | 146 | 55.1 |
| May | 31.3° | 17.3° | -2.4° | 124.9 | 80% | 171 | 41 |
| Jun | 40.4° | 22° | 3.8° | 134.7 | 79% | 188 | 38.2 |
| Jul | 40.8° | 23.9° | 8.6° | 114.4 | 77% | 189 | 30.7 |
| Aug | 37.8° | 23.5° | 8.9° | 88.4 | 73% | 172 | 33.5 |
| Sep | 37.1° | 19.8° | 2.5° | 83.4 | 71% | 138 | 49.3 |
| Oct | 33.4° | 12.6° | -3.9° | 98.9 | 74% | 100 | 45.7 |
| Nov | 25.3° | 5.7° | -12.2° | 87.9 | 79% | 66 | 45.8 |
| Dec | 20.6° | 0.1° | -19.9° | 90.5 | 86% | 48 | 50.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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