US Geography / US Weather / Connecticut Weather / Old Greenwich |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 37 | 40 | 48 | 61 | 71 | 80 | 84 | 82 | 75 | 65 | 54 | 41 |
| Avg. Low | 17 | 18 | 28 | 36 | 46 | 55 | 60 | 58 | 52 | 41 | 34 | 24 |
| Mean | 27 | 30 | 38 | 48 | 58 | 68 | 74 | 71 | 64 | 54 | 44 | 34 |
| Avg. Precip. | 3.8 in | 3.4 in | 4.3 in | 4.4 in | 4.7 in | 4.0 in | 4.0 in | 4.0 in | 4.1 in | 4.1 in | 4.6 in | 4.3 in |
Degrees in Fahrenheit
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