United States
| Month | Max. | Min. | Avg. | ||
|---|---|---|---|---|---|
| January | 17°C | -12°C | 4.7°C | 84.3% |
0.1 mm |
| February | 19°C | -7°C | 5.4°C | 81% |
0.1 mm |
| March | 25°C | -2°C | 8.4°C | 80.6% |
0.1 mm |
| April | 25°C | 1°C | 11.1°C | 66.6% |
0.1 mm |
| May | 31°C | 2°C | 13.7°C | 64.2% |
0 mm |
| June | 32°C | 6°C | 17.3°C | 61.8% |
0 mm |
| July | 36°C | 9°C | 20.5°C | 59.1% |
0 mm |
| August | 35°C | 8°C | 21.2°C | 62.7% |
0 mm |
| September | 34°C | 6°C | 18.7°C | 69.9% |
0 mm |
| October | 29°C | -1°C | 12.2°C | 77.4% |
0.1 mm |
| November | 19°C | -1°C | 8.8°C | 83.2% |
0.2 mm |
| December | 16°C | -1°C | 6.9°C | 84.8% |
0.2 mm |
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