Temperature in Connecticut in May

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

Connecticut, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in May ranging from 19°C (66°F) in Mystic to 22°C (72°F) in Windsor Locks. Nighttime temperatures generally drop to 10°C (50°F) in Windsor Locks and 10°C (50°F) in Mystic.

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

Discover the typical May temperatures for the most popular locations of Connecticut on the map below. Detailed insights are just a click away.

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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 May

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 May: blue is cold, red is hot.

See all May weather averages, cities and regions in Connecticut

Connecticut temperatures in May: frequently asked questions

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

Average daytime highs in Connecticut, the United States of America during May reach about 19°C (66°F) in Mystic.

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

After dark, Mystic cools to about 10°C (50°F) on an average May night.

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

Data insights from our comprehensive database indicate that Windsor Locks is the city with the highest warmth. Daytime peaks average near 22°C (72°F), while the nights are characterized by a low temperature close to 10°C (50°F).

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

For the month of May, Mystic is the most temperate city in Connecticut, the United States of America based on our records. Highs average 19°C (66°F) and nighttime temperatures dip to around 10°C (50°F).

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

The weather is predominantly sunny, with an estimated total of around 255 hours of sunshine in Mystic. This means many sunny days, which creates a cheerful atmosphere during this month.

Interested in more climate information?

We have much more information about the climate in Connecticut.

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