ClimateForecastNovemberDecember >>

Norwalk (CT) Climate by Month

The temperature in Norwalk can vary greatly throughout the year. The temperatures shift from warm to cold. It also has a notably wet climate with much precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Norwalk. Average daytime temperatures range from a comfortable 30°C in July, the warmest time of the year, to a chilly 4°C during cooler months like February. At night, temperatures typically average around -6°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Norwalk has a relatively rain/snowy climate with high precipitation levels, averaging 1202 mm of rain/snowfall annually. Year-round, Norwalk has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 126 mm, and the driest month, November, with 80 mm, is minimal.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Norwalk. While July receives considerable daily sunshine with up to 9.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.7 hours of sunlight per day.

Monthly hours of sunshine

Data from: New York City, the United States of America (56 KM, 35 Miles).

Daily hours of sunshine

Data from: New York City, the United States of America (56 KM, 35 Miles).

The best time of year to visit Norwalk in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Norwalk?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Norwalk?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Norwalk?
    The coldest month is February with an average maximum temperature of 4°C.
  • Which is the wettest month in Norwalk?
    June tops the wettest month list with 126 mm of rainfall.
  • Which is the driest month in Norwalk?
    November is the driest month with 80 mm of precipitation.
  • Which is the sunniest month in Norwalk?
    July is the sunniest month with an average of 271 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Norwalk (CT)

    Thu   Nov 21
    11°C | 6°C
    NE 18 km/h
    45 mm
    broken clouds and rain

    broken clouds and rain

    Fri   Nov 22
    7°C | 3°C
    SW 25 km/h
    14 mm
    overcast and heavy rain

    overcast and heavy rain

    Sat   Nov 23
    10°C | 3°C
    W 29 km/h
    2.8 mm
    broken clouds and slight rain

    broken clouds and slight rain