May weather forecast
Windham, CT

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Weather in May

May, the last month of the spring in Windham, is an enjoyable month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 67.1°F (19.5°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a moderate 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). Windham encounters a steady low-temperature average of 48.9°F (9.4°C) throughout the month of May.

Humidity

In Windham, the average relative humidity in May is 76%.

Rainfall

In Windham, Connecticut, during May, the rain falls for 17.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, 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, during the entire year, snow falls for 31.6 days and aggregates up to 15.98" (406mm) of snow.

Daylight

The average length of the day in May in Windham is 14h and 34min.
On the first day of May, sunrise is at 5:44 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:16 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in May in Windham, Connecticut, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Windham?

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

What is the average humidity in May in Windham?

In Windham, the average relative humidity in May is 76%.

How many days does it rain in May in Windham?

In Windham, Connecticut, in May, during 17.1 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

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 day length is 14h and 34min.

When are sunrise and sunset in May in Windham?

On the first day of May, sunrise is at 5:44 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:16 pm EDT.

How long on average sun shines in May in Windham?

The average sunshine duration in May in Windham is 8.3h.

How high is the UV index in May in Windham?

In May, the average daily maximum UV index in Windham is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in May
Windham, CT

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

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

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).

Average humidity in May
Windham, CT

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

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

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").

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).

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").
The months with the least snowfall are June, July, August, September and October (0").

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).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Windham, CT
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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).

Average UV index in May
Windham, CT

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

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

Average cloud cover in May
Windham, CT

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

The 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).

Average visibility in May
Windham, CT

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

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

Windham, Connecticut, USA

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