Temperature in Connecticut in October

Daytime highs, nighttime lows and the warmest cities in Connecticut, the United States of America this October.

Connecticut, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in October ranging from 16°C (61°F) in Cornwall Bridge to 18°C (64°F) in Stamford. Nighttime temperatures generally drop to 9°C (48°F) in Stamford and 5°C (41°F) in Cornwall Bridge.

What is the temperature of the different cities in Connecticut, the United States of America in October?

Curious about the October temperatures in the prime spots of Connecticut? Navigate the map below and tap on a destination dot for more detailed stats.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Connecticut, check out our Connecticut's climate page.

See also: Connecticut weather by month.

Best Places to Visit in Connecticut in October

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Connecticut.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in October: blue is cold, red is hot.

See all October weather averages, cities and regions in Connecticut

Connecticut temperatures in October: frequently asked questions

How hot does it get in Connecticut, the United States of America in October?

Mystic averages a daytime high of 18°C (64°F) in October, which is moderate for Connecticut, the United States of America.

How cold does it get at night in Connecticut, the United States of America in October?

Mystic sees nighttime lows close to 8°C (46°F) in October.

What is the warmest city in October in Connecticut, the United States of America?

Stamford tops the warmest city list in our database with average maximum daytime temperatures around 18°C (64°F) and a minimum nighttime temperature of around 9°C (48°F).

What is the coldest city in October in Connecticut, the United States of America?

For the month of October, Cornwall Bridge is the most temperate city in Connecticut, the United States of America based on our records. Highs average 16°C (61°F) and nighttime temperatures dip to around 5°C (41°F).

How much sun does Connecticut, the United States of America get in October?

Mystic usually sees around 208 hours of sunlight, indicating many sunny days.

Interested in more climate information?

We have much more information about the climate in Connecticut.

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