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Weather & Climate
Ostashkov, Tver, Russia
Overview
Climate data and monthly weather averages for Ostashkov.
Key Metrics
Annual Avg
4.2°C
Summer Avg
16.4°C
Winter Avg
-8.3°C
Record High
35.7°C
Record Low
-41.9°C
Annual Precipitation
863.3 mm
Avg Humidity
89%
Summer Humidity
82%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 4° | -9.5° | -41.9° | 49.6 | 95% | 13 | 26 |
| Feb | 4.1° | -8.7° | -33.5° | 39.8 | 95% | 34 | 27.8 |
| Mar | 15.1° | -3.5° | -24.4° | 45.9 | 95% | 81 | 27.8 |
| Apr | 22.2° | 4.1° | -12.6° | 51.6 | 85% | 117 | 25.7 |
| May | 28.6° | 11.7° | -3.4° | 87.7 | 80% | 157 | 22.3 |
| Jun | 31.4° | 15.1° | 1° | 107.1 | 81% | 159 | 22.1 |
| Jul | 32.4° | 17.9° | 6.1° | 108.8 | 83% | 159 | 17.7 |
| Aug | 35.7° | 16.3° | 5° | 102.6 | 83% | 126 | 21.5 |
| Sep | 25.4° | 10.9° | -1.5° | 66.6 | 87% | 77 | 22.6 |
| Oct | 18.9° | 4.1° | -12° | 81.2 | 92% | 35 | 26.6 |
| Nov | 11.3° | -1.7° | -27.1° | 66.6 | 95% | 12 | 27.4 |
| Dec | 6.8° | -6.8° | -29.4° | 55.8 | 95% | 8 | 27.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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