United States
| Month | Max. | Min. | Avg. | ||
|---|---|---|---|---|---|
| January | 15°C | -19°C | -2°C | 59.6% |
0.2 mm |
| February | 15°C | -17°C | -1.7°C | 63.4% |
0 mm |
| March | 22°C | -11°C | 4.6°C | 62.9% |
0.1 mm |
| April | 28°C | -3°C | 9.1°C | 63.4% |
0.1 mm |
| May | 30°C | 6°C | 14.1°C | 74.3% |
0.2 mm |
| June | 40°C | 9°C | 21°C | 71.4% |
0 mm |
| July | 38°C | 15°C | 24.8°C | 70.4% |
0 mm |
| August | 36°C | 12°C | 22.1°C | 67.2% |
0.1 mm |
| September | 34°C | 6°C | 19.2°C | 75.6% |
0 mm |
| October | 31°C | 1°C | 13.5°C | 73.2% |
0.2 mm |
| November | 24°C | -4°C | 6.8°C | 66.5% |
0.2 mm |
| December | 17°C | -14°C | 0.8°C | 70% |
0.2 mm |
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