Patchogue climate by month
What the weather is like
Patchogue has a humid subtropical climate (Köppen Cfa): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 82° and nights 67°. January is the coolest month, with highs of 40° and lows of 26°. The difference between the warmest and the coolest month is about 41°, a large swing typical of continental interiors.
About 46.5 in of precipitation falls in an average year. June is the wettest month (3.9 in, 11 wet days) and November the driest (3.8 in, 8 wet days). Cloud cover ranges from 30% in July to 41% in January.
The sea reaches about 73° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Washington, the capital, Patchogue is 3.9° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 82° · July
- Coldest nights
- 26° · January
- Wettest month
- June
- Driest month
- November
- Clearest skies
- July · 30% cloud
- Warmest sea
- 73° · August
- Longest day
- 15 h 05 min
- Shortest day
- 9 h 16 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 40° | 42° | 48° | 58° | 68° | 76° | 82° | 81° | 74° | 64° | 54° | 45° |
| Average low | 26° | 27° | 33° | 41° | 51° | 61° | 67° | 66° | 60° | 48° | 39° | 31° |
| Precipitation | 3.6 in | 3.3 in | 4.5 in | 4.4 in | 3.7 in | 3.9 in | 3.7 in | 3.9 in | 3.7 in | 4.0 in | 3.8 in | 4.2 in |
| Wet days (≥1 mm) | 9.4 | 8.9 | 9.7 | 9.9 | 11.1 | 11.3 | 11.2 | 10.8 | 8.8 | 9.5 | 8.4 | 10.8 |
| Cloud cover | 41% | 40% | 39% | 39% | 38% | 35% | 30% | 30% | 31% | 32% | 38% | 41% |
| Sea temperature | 43° | 40° | 40° | 45° | 54° | 64° | 72° | 73° | 70° | 63° | 55° | 49° |
| Daylight | 9h 34 | 10h 40 | 11h 54 | 13h 17 | 14h 27 | 15h 05 | 14h 49 | 13h 49 | 12h 30 | 11h 10 | 9h 56 | 9h 16 |
| Month score | 31 | 33 | 31 | 55 | 71 | 71 | 62 | 65 | 79 | 76 | 47 | 28 |