2 to 27°C
temperature
2777 hours
sunshine per day
762 mm
rain
179 days
dry
162 days
rain
24 days
snow

Climate of New Haven

New Haven has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for New Haven is 14° degrees and there is about 763 mm of rain in a year. It is dry for 165 days a year with an average humidity of 75% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 2°C and 27°C
  • Night:the average nighttime temperature is between -4°C and 19°C
  • Sea temperature: the sea temperature is between 5°C and 25°C
  • Rain: it rains 162 days and there is a total of approximately 762 mm rainfall
  • Snow: it snows an average of 24 days per year
  • Sun hours: throughout the year there are 2777 sun hours
Maximum temperature: between 2°C and 27°C
Warmest month: 27°C in July
Coldest month: 2°C in January
Night temperature: between -4°C and 19°C
Sea temperature: between 5°C and 25°C
Dry days: 179 days
Days with rain: 162 days
Days with snow: 24 days
Total rain sum: 762 mm
Hours of sunshine: 2777 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for New Haven.

Precipitation graph

This graph shows the average amount of rainfall per month for New Haven.

Climate table of New Haven

In this climate table you can see at a glance what the average weather per month is for New Haven. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for New Haven might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 2 3 6 13 19 23 27 26 23 17 10 5
Night temp. (°C) -4 -3 0 6 11 15 19 19 16 11 5 0
Water temp. (°C) 8 5 6 10 15 21 24 25 22 20 15 12
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 58 55 63 51 54 58 69 71 59 72 72 80
Days with rain 9 10 12 14 16 17 17 16 13 14 11 13
Days with snow 6 8 5 - - - - - - - 1 4
Dry days 16 10 14 16 15 13 14 15 17 17 18 14
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 5 6 9 9 10 11 11 9 6 5 5
Wind force (Bft) 3 3 3 3 3 2 2 2 3 3 3 3
UV-index 2 2 2 3 5 6 6 6 4 3 2 2

Best time to visit New Haven

The best time to visit New Haven in the state of Connecticut is from May through September. In this period you have a warm temperature and little precipitation. The highest average temperature in New Haven is 27°C in July and the lowest is 2°C in January. The highest water temperature is 25°C and it does not get colder than 5°C.

Climate of New Haven by month

What is the average climate in a given month for New Haven? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

New Haven weather experiences

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