New Haven, CT Weather
New Haven hourly forecast: next 24 hours
Today's high of 92°F (33°C) is about 10°F (6°C) above the typical July high of 82°F (28°C).
Current conditions in detail
New Haven weather tomorrow (Saturday, July 18)
Tomorrow in New Haven looks sunny, with a high of 84° and an overnight low of 66°. There is a 77% chance of rain - plan accordingly. Winds top out near 17 mph, and the UV index reaches 3 (low).
New Haven 14-day forecast
About the weather in New Haven
Located in Connecticut, United States, New Haven experiences a humid subtropical climate with hot, humid summers and generally mild winters. Afternoon temperatures peak near 82°F (28°C) in July and dip to about 39°F (4°C) in January, with around 51.6 inches (1310 mm) of precipitation falling across the year.
New Haven weather: quick facts
- Hottest month: July - highs near 82°F (28°C)
- Coldest month: January - highs near 39°F (4°C)
- Record high: 95°F (35°C) · Record low: -8°F (-22°C) (2015–2024)
- Wettest month: December (11 rainy days) · Sunniest: July (11.5 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
- Snow: about 12 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 82°F (28°C) and overnight lows stay near 68°F (20°C). The coolest month is January, with typical highs of 39°F (4°C) and lows around 26°F (-4°C). Based on 2015–2024 weather data, temperatures have reached as high as 95°F (35°C) and dropped as low as -8°F (-22°C).
Rain, sun and snow
December is usually the wettest month. It brings about 5.1 inches (130 mm) of rain over 11 days, while November is the driest. July brings the most sunshine, averaging 11.5 hours of sun a day. Snow falls on about 12 days in a typical year, mostly from December through March.
Season by season
Spring (March through May)
Spring in New Haven is crisp but comfortable, with daytime highs averaging 57°F (14°C) and nights around 41°F (5°C); expect showers on roughly 34 days across the season, plus around 3 snowy days.
Summer (June through August)
Summer in New Haven is pleasantly warm, with daytime highs averaging 80°F (26°C) and nights around 65°F (18°C); expect showers on roughly 34 days across the season.
Fall (September through November)
Fall in New Haven is mild, with daytime highs averaging 64°F (18°C) and nights around 50°F (10°C); expect showers on roughly 27 days across the season.
Winter (December through February)
Winter in New Haven is brisk and cold, with daytime highs averaging 41°F (5°C) and nights around 28°F (-2°C); expect showers on roughly 31 days across the season, plus around 9 snowy days.
Average temperatures in New Haven by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 39° | 26° | 10 | 4.4 in | 6.2 h/day | 66% |
| February | 41° | 26° | 10 | 3.7 in | 6.9 h/day | 69% |
| March | 47° | 31° | 11 | 4.4 in | 8.3 h/day | 65% |
| April | 57° | 40° | 12 | 4.9 in | 8.7 h/day | 68% |
| May | 67° | 51° | 11 | 3.8 in | 10.0 h/day | 73% |
| June | 76° | 60° | 11 | 3.6 in | 11.2 h/day | 74% |
| July | 82° | 68° | 12 | 4.8 in | 11.5 h/day | 76% |
| August | 81° | 67° | 11 | 4.1 in | 10.9 h/day | 75% |
| September | 74° | 61° | 9 | 4.6 in | 9.2 h/day | 75% |
| October | 64° | 50° | 10 | 4.7 in | 7.8 h/day | 74% |
| November | 53° | 39° | 8 | 3.4 in | 6.9 h/day | 69% |
| December | 44° | 31° | 11 | 5.1 in | 5.7 h/day | 71% |