GROTON NEW LONDON AP, CT US
GHCN ID: USW00014707 · CT, US · 3.0 m elevation · Records 1999-2026 (27 years)
Primary station for Groton, CT.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 38.3°F | 23.3°F | 30.8°F | 2.68 in | — |
| February | 40.2°F | 24.6°F | 32.4°F | 2.20 in | — |
| March | 46.6°F | 30.7°F | 38.6°F | 3.82 in | — |
| April | 56.2°F | 39.1°F | 47.6°F | 3.58 in | — |
| May | 64.8°F | 48.8°F | 56.8°F | 3.31 in | — |
| June | 73.8°F | 58.2°F | 66.0°F | 3.30 in | — |
| July | 79.8°F | 64.8°F | 72.3°F | 3.24 in | — |
| August | 79.2°F | 63.8°F | 71.5°F | 3.32 in | — |
| September | 73.5°F | 56.9°F | 65.2°F | 3.83 in | — |
| October | 63.2°F | 45.6°F | 54.4°F | 3.66 in | — |
| November | 53.3°F | 36.8°F | 45.1°F | 3.24 in | — |
| December | 43.9°F | 29.0°F | 36.5°F | 3.13 in | — |