Stamford
Connecticut, USA
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Stamford, CT

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  • The average high temperature in May: 72.8°F

The warmest month (with the highest average high temperature) is July (85.4°F).
The month with the lowest average high temperature is January (38.2°F).

  • The average low temperature in May: 47.4°F

The month with the highest average low temperature is July (61.6°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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  • The average rainfall in May: 5"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the lowest rainfall) is February (3.3").

  • The average rainfall days in May: 12.5 days

Months with the highest number of rainy days are April and May (12.5 days).
The month with the lowest number of rainy days is October (9.2 days).

  • The average snowfall in May: 0"

The month with the highest snowfall is January (9.3").
Months with the lowest snowfall are May, June, July, August, September and October (0").

  • The average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.8 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • The average sea temperature in May: 51.4°F

The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).

  • The average daylight in May: 15h

Months with the longest days are May, June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in May: 8h

Months with most sunshine are June and July (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 4h).

  • The average UV index in May: 7

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).

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