United States
| Month | Max. | Min. | Avg. | ||
|---|---|---|---|---|---|
| January | 21°C | -16°C | 3°C | 72.2% |
0.2 mm |
| February | 25°C | -9°C | 8.9°C | 73% |
0.2 mm |
| March | 28°C | -3°C | 13.2°C | 60.6% |
0.2 mm |
| April | 32°C | -1°C | 18°C | 73.3% |
0.1 mm |
| May | 32°C | 7°C | 21.2°C | 85.5% |
0.4 mm |
| June | 37°C | 12°C | 25.5°C | 84% |
0.1 mm |
| July | 37°C | 18°C | 27.7°C | 81.8% |
0.1 mm |
| August | 37°C | 11°C | 26°C | 76.6% |
0 mm |
| September | 35°C | 9°C | 24.2°C | 74.2% |
0 mm |
| October | 33°C | 1°C | 18.9°C | 72.2% |
0.1 mm |
| November | 29°C | -5°C | 12.5°C | 77.2% |
0.1 mm |
| December | 22°C | -9°C | 7.5°C | 75.2% |
0.2 mm |
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