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Connecticut weather in October

Are you planning a trip to Connecticut in October and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Connecticut in October?

Connecticut is a region in the United States of America. October in Connecticut generally has temperatures that range from moderate to pleasant, with precipitation levels ranging from moderate to high.

The average highest temperatures fluctuate between moderate in Cornwall Bridge at 16°C to pleasant in Stamford at 18°C. Nighttime temperatures generally drop to 9°C in Stamford and 5°C in Cornwall Bridge.

In October, precipitation varies across different areas. From moderate rainfall in Stratford with an average of 98 mm to high rainfall in Torrington with 137 mm. Meanwhile, Stamford enjoys close to 213 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For a closer look at October's conditions in Connecticut, see the map below. For a more detailed look at Connecticut's yearly weather, check out our Connecticut climate page.

Where to go in Connecticut in October

Find more information for the most popular destinations in the Connecticut on the map below. Click on a destination dot for more detailes.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in October for the 5 most popular destinations in Connecticut?

Stamford

In October Stamford generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 9°C and high monthly rainfall. So on average the conditions are tolerable that month.

Stamford
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
25°C 
15°C 
218 hours 
92 mm 
10 days 
18°C 
9°C 
213 hours 
100 mm 
11 days 
12°C 
3°C 
153 hours 
77 mm 
9 days 
Climate in Stamford

Mystic

In October Mystic generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 8°C and high monthly rainfall. So on average the conditions are tolerable that month.

Mystic
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
23°C 
14°C 
233 hours 
98 mm 
9 days 
18°C 
8°C 
208 hours 
108 mm 
13 days 
12°C 
3°C 
147 hours 
94 mm 
10 days 
Climate in Mystic

Windsor Locks

In October Windsor Locks generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 7°C and high monthly rainfall. So on average the conditions are tolerable that month.

Windsor Locks
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
25°C 
13°C 
223 hours 
103 mm 
9 days 
18°C 
7°C 
199 hours 
124 mm 
12 days 
12°C 
1°C 
139 hours 
85 mm 
9 days 
Climate in Windsor Locks

Danbury

In October Danbury generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 6°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Danbury
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
24°C 
12°C 
101 mm 
10 days 
17°C 
6°C 
124 mm 
13 days 
11°C 
1°C 
87 mm 
10 days 
Climate in Danbury

Groton

In October Groton generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 8°C and high monthly rainfall. So on average the conditions are tolerable that month.

Groton
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
23°C 
14°C 
223 hours 
104 mm 
10 days 
18°C 
8°C 
199 hours 
107 mm 
13 days 
12°C 
3°C 
139 hours 
93 mm 
10 days 
Climate in Groton

Is your destination not in the list? Have a look at other destinations in Connecticut, in the United States of America.

Is October the best time to visit Connecticut?

Given the typically tolerable weather conditions in Stamford, October might be a good time to visit Connecticut. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in May and September offering mostly perfect weather in Stamford. In contrast, January, February, March and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Connecticut. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.