GROTON, CT US
GHCN ID: USC00063207 · CT, US · 12.2 m elevation · Records 1948-2024 (76 years)
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 38.8°F | 23.8°F | 31.3°F | 3.91 in | 5.8 in |
| February | 40.8°F | 24.9°F | 32.9°F | 3.42 in | 8.3 in |
| March | 47.3°F | 31.6°F | 39.5°F | 4.92 in | 3.9 in |
| April | 56.9°F | 40.9°F | 48.9°F | 4.40 in | 0.8 in |
| May | 66.4°F | 49.9°F | 58.1°F | 3.67 in | — |
| June | 75.2°F | 59.3°F | 67.3°F | 3.93 in | — |
| July | 80.8°F | 65.9°F | 73.4°F | 3.42 in | — |
| August | 79.8°F | 65.1°F | 72.5°F | 4.19 in | — |
| September | 73.6°F | 58.0°F | 65.8°F | 4.29 in | — |
| October | 63.3°F | 47.1°F | 55.2°F | 4.42 in | — |
| November | 53.2°F | 37.9°F | 45.5°F | 3.75 in | 0.5 in |
| December | 44.1°F | 29.5°F | 36.8°F | 4.59 in | 5.2 in |