United States
| Month | Max. | Min. | Avg. | ||
|---|---|---|---|---|---|
| January | 14°C | -19°C | -4.1°C | 72.4% |
0.1 mm |
| February | 18°C | -18°C | -1.5°C | 73.8% |
0.1 mm |
| March | 26°C | -10°C | 6.5°C | 65.8% |
0.1 mm |
| April | 32°C | -5°C | 10.7°C | 65.6% |
0.2 mm |
| May | 32°C | 3°C | 15.5°C | 75.2% |
0 mm |
| June | 39°C | 6°C | 23.2°C | 72.3% |
0.1 mm |
| July | 39°C | 12°C | 25.6°C | 77.5% |
0.4 mm |
| August | 36°C | 8°C | 22.9°C | 75.1% |
0.2 mm |
| September | 37°C | 5°C | 20.4°C | 77.6% |
0 mm |
| October | 34°C | -1°C | 14.2°C | 71.3% |
0 mm |
| November | 26°C | -6°C | 6.3°C | 74.8% |
0 mm |
| December | 16°C | -14°C | 0.3°C | 78.9% |
0.1 mm |
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