Upper Alton vs West Islip Climate
87%matchOn climate, West Islip is a 87% match for Upper Alton. Compared with Upper Alton, West Islip has 6°F (3°C) cooler summer days.
Upper Alton gets 40 in (1019 mm) of rain a year and West Islip 42 in (1070 mm). July is the warmest month in both, with highs of 88°F (31°C) in Upper Alton and 83°F (28°C) in West Islip.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Upper AltonWest Islipsolid = high, dashed = low
Rain (in per month)
Upper AltonWest Islip
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Upper Alton | West Islip | Upper Alton | West Islip | Upper Alton | West Islip | |
| Jan | 39°F(4°C) | 39°F(4°C) | 21°F(-6°C) | 26°F(-4°C) | 2.1 in(54 mm) | 3.2 in(81 mm) |
| Feb | 44°F(7°C) | 41°F(5°C) | 25°F(-4°C) | 26°F(-3°C) | 2.1 in(54 mm) | 3.1 in(78 mm) |
| Mar | 55°F(13°C) | 49°F(9°C) | 35°F(1°C) | 33°F(1°C) | 3.2 in(82 mm) | 4.2 in(107 mm) |
| Apr | 67°F(20°C) | 59°F(15°C) | 45°F(7°C) | 42°F(6°C) | 3.9 in(99 mm) | 3.5 in(90 mm) |
| May | 76°F(25°C) | 68°F(20°C) | 55°F(13°C) | 52°F(11°C) | 4.8 in(121 mm) | 3.1 in(78 mm) |
| Jun | 84°F(29°C) | 78°F(25°C) | 64°F(18°C) | 62°F(16°C) | 4.0 in(102 mm) | 3.3 in(84 mm) |
| Jul | 88°F(31°C) | 83°F(28°C) | 68°F(20°C) | 68°F(20°C) | 4.0 in(102 mm) | 3.4 in(86 mm) |
| Aug | 87°F(30°C) | 82°F(28°C) | 66°F(19°C) | 67°F(19°C) | 3.4 in(86 mm) | 4.1 in(103 mm) |
| Sep | 81°F(27°C) | 75°F(24°C) | 58°F(14°C) | 60°F(15°C) | 3.6 in(92 mm) | 3.1 in(80 mm) |
| Oct | 69°F(20°C) | 64°F(18°C) | 46°F(8°C) | 48°F(9°C) | 3.0 in(75 mm) | 3.9 in(99 mm) |
| Nov | 55°F(13°C) | 54°F(12°C) | 35°F(2°C) | 39°F(4°C) | 3.3 in(83 mm) | 3.3 in(84 mm) |
| Dec | 43°F(6°C) | 44°F(7°C) | 26°F(-3°C) | 31°F(-1°C) | 2.7 in(69 mm) | 3.9 in(100 mm) |
1991–2020 averages, by calendar month.