May weather forecast and climate
Windham, CT

Weather in May

May, the last month of the spring, in Windham, is a comfortable month, with average temperature varying between 48.9°F (9.4°C) and 67.1°F (19.5°C).

Temperature

In May, the average high-temperature increases, from a moderate 55.9°F (13.3°C) in April, to an enjoyable 67.1°F (19.5°C). In May, in Windham, the average low-temperature is 48.9°F (9.4°C).

Humidity

In Windham, the average relative humidity is 76%.

Rainfall

In Windham, during May, the rain falls for 17.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, in Windham, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows in Windham, Connecticut. During 0.2 snowfall days, in May, Windham aggregates 0.28" (7mm) of snow. In Windham, Connecticut, during the entire year, snow falls for 31.6 days, and aggregates up to 15.98" (406mm) of snow.

Daylight

In Windham, Connecticut, the average length of the day is 14.6h.

Sunshine

In May, the average sunshine in Windham is 8.3h.

UV index

In May, the average daily maximum UV index in Windham, Connecticut, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Windham?

The average high-temperature, in May, in Windham, is 67.1°F (19.5°C), while the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in May in Windham?

The average relative humidity in May in Windham is 76%.

How many days does it rain in May in Windham?

In Windham, Connecticut, during May, the rain falls for 17.1 days and regularly aggregates up to 2.76" (70mm) of precipitation.

What is the last month it snows in Windham?

May is the last month it regularly snows in Windham, Connecticut. During 0.2 snowfall days, in May, Windham aggregates 0.28" (7mm) of snow.

How many hours of daylight does Windham have in May?

In May, the average length of the day in Windham is 14.6h.

How long on average sun shines in May in Windham?

In May, the average sunshine in Windham is 8.3h.

How high is the UV index in May in Windham?

In Windham, Connecticut, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in May
Windham, CT

Average temperature in May - Windham, CT
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in May
Windham, CT

Average pressure in May - Windham, CT
  • Average pressure in May: 30.01"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in May
Windham, CT

Average wind speed in May - Windham, CT
  • Average wind speed in May: 7mph

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Windham, CT

Average humidity in May - Windham, CT
  • Average humidity in May: 76%

Months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in May
Windham, CT

Average rainfall in May - Windham, CT
  • Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in May
Windham, CT

Average rainfall days in May - Windham, CT
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in May
Windham, CT

Average snowfall in May - Windham, CT
  • Average snowfall in May: 0.28"

The month with the highest snowfall is March (4.41").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Windham, CT

Average snowfall days in May - Windham, CT
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (8.3 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Windham, CT

Average daylight in May / Average sunshine in May - Windham, CT
  • Average daylight in May: 14.6h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 8.3h

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 4.7h).

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Average sunshine days in May
Windham, CT

Average sunshine days in May - Windham, CT
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in May
Windham, CT

Average UV index in May - Windham, CT
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in May
Windham, CT

Average cloud cover in May - Windham, CT
  • Average cloud cover in May: 48

Months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Windham, CT

Average visibility in May - Windham, CT
  • Average visibility in May: 5mi

Months with the highest visibility are January, March, April, October, November and December (6mi).
Months with the lowest visibility are February, May, June, July, August and September (5mi).

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