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Weather & Climate
Ashburn, Virginia, United States
Overview
Climate data and monthly weather averages for Ashburn.
Key Metrics
Annual Avg
12.7°C
Summer Avg
24.4°C
Winter Avg
0.8°C
Record High
40.6°C
Record Low
-19.6°C
Annual Precipitation
1117.1 mm
Avg Humidity
76%
Summer Humidity
70%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 21.5° | -0.4° | -17.3° | 65.4 | 82% | 61 | 46.5 |
| Feb | 24.8° | 0.8° | -19.5° | 66.6 | 81% | 79 | 54.9 |
| Mar | 26.2° | 5.6° | -19.6° | 80.6 | 79% | 117 | 57.1 |
| Apr | 33.4° | 12.1° | -5.2° | 93.6 | 76% | 146 | 51.1 |
| May | 33.2° | 17.6° | -0.8° | 120.3 | 78% | 168 | 34.5 |
| Jun | 36.9° | 22.7° | 6.3° | 115.5 | 74% | 182 | 39.3 |
| Jul | 40.6° | 25.6° | 11.1° | 108.5 | 68% | 186 | 32.9 |
| Aug | 38.7° | 24.9° | 11.8° | 94.9 | 68% | 164 | 48 |
| Sep | 37.1° | 20.8° | 4.7° | 108 | 70% | 129 | 59.6 |
| Oct | 36.2° | 13.7° | -2.8° | 99.2 | 76% | 98 | 48.1 |
| Nov | 25.9° | 7° | -6.7° | 77.4 | 79% | 68 | 43.1 |
| Dec | 23.1° | 1.9° | -14.1° | 87.1 | 84% | 53 | 49.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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