ISLIP LI MACARTHUR AP, NY US
GHCN ID: USW00004781 · NY, US · 25.6 m elevation · Records 1963-2026 (63 years)
Primary station for Islandia, NY.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 39.2°F | 24.6°F | 31.9°F | 3.66 in | 10.3 in |
| February | 41.0°F | 25.5°F | 33.3°F | 3.29 in | 9.4 in |
| March | 47.7°F | 32.0°F | 39.9°F | 4.51 in | 6.5 in |
| April | 58.3°F | 41.2°F | 49.7°F | 4.06 in | 0.6 in |
| May | 68.3°F | 50.8°F | 59.5°F | 3.28 in | — |
| June | 77.2°F | 60.9°F | 69.0°F | 4.00 in | — |
| July | 82.8°F | 67.3°F | 75.0°F | 3.26 in | — |
| August | 81.4°F | 66.0°F | 73.7°F | 4.24 in | — |
| September | 74.8°F | 58.9°F | 66.9°F | 3.60 in | — |
| October | 64.1°F | 47.3°F | 55.7°F | 3.97 in | — |
| November | 53.6°F | 37.6°F | 45.6°F | 3.41 in | 0.5 in |
| December | 44.4°F | 29.8°F | 37.1°F | 4.71 in | 4.5 in |