Search Menu

The weather in October in Connecticut

It's cool to moderate in October in Connecticut with an average temperature of 18°C. Temperatures this month range from a low of 13°C to a high of 23°C. At night, you can expect temperatures between 4°C and 12°C.

Looking for sun? October isn’t a good month to be in Connecticut. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in October for Connecticut, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 30°C in 2019, Connecticut reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was 4°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of -6°C to a highest value of 21°C.

Precipitation and snowfall

In October, there is an average of 192 mm of precipitation, spread over 17 days. Of the total precipitation, about 1,0 cm falls as snow in October. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in October for Connecticut

Click on any day in October to get detailed info about the usual weather on that day in Connecticut. Check out the historical temperatures and precipitation over the past 10 years on this day.

October weather comparison

  Connecticut New York
Average temperature 18°C 21°C
Max. temperature 23°C 26°C
Min. temperature 4°C -5°C
Total precipitation 192 mm 119 mm
Rainy days 17 days 13 days
Total snowfall 1,0 cm 0 cm
Snowy days 1 day 0 days

Start of October

The month of October starts in Connecticut with mild temps, averaging around 20°C during the day and nights around 11°C.

Mid October

By mid-October, daytime temps drop to around 19°C, with nights around 8°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of October

By the end of October, the average daytime temperature in Connecticut is around 15°C, while nighttime temps are about 7°C. There’s a significant chance of many days with precipitation.

Find affordable vacations to Connecticut

UV index

The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Connecticut for all months and discover the best travel time

The climate in Connecticut is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Connecticut to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in October in Connecticut, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in October in Connecticut

Temperature in October in Connecticut over the years

Precipitation charts

These charts show the average amount of precipitation in October in Connecticut, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in October in Connecticut

Total precipitation in October in Connecticut over the years

Daily Snowfall in October in Connecticut

Snowfall in October in Connecticut per year

Daily UV index in October in Connecticut

This chart shows the average daily UV index in October in Connecticut, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in October in Connecticut

Have you been to Connecticut in October?

Share your weather experience in October in Connecticut.

Your email will not be shown in the review and will not be shared with others.

Average weather in Connecticut by month

Click on a month below to see detailed weather info for Connecticut. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.