May weather forecast
Willimantic, CT

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Weather in May

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

Temperature

A rise in the average high-temperature is observed during May, moving from a mild 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). The average low-temperature of 48.9°F (9.4°C) is witnessed in Willimantic during May.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Willimantic, in May, it is raining for 17.1 days, with typically 2.76" (70mm) of accumulated 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 Willimantic. During 0.2 snowfall days, in May, Willimantic aggregates 0.28" (7mm) of snow. Throughout the year, in Willimantic, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 34min.
On the first day of May in Willimantic, 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 May, the average sunshine is 8.3h.

UV index

In May, the average daily maximum UV index in Willimantic is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Willimantic?

During May, Willimantic experiences an average high-temperature of 67.1°F (19.5°C) and a low-temperature of 48.9°F (9.4°C).

What is the average humidity in May in Willimantic?

The average relative humidity in May is 76%.

How much does it rain in Willimantic in May?

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

What is the last month it snows in Willimantic?

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

How many hours of daylight does Willimantic have in May?

The average day length in May is 14h and 34min.

What time are sunrise and sunset in May in Willimantic?

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 Willimantic?

In Willimantic, Connecticut, the average sunshine duration in May is 8.3h.

What is the UV index intensity in May in Willimantic?

In Willimantic, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from 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
Willimantic, CT

Average temperature in May - Willimantic, 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
Willimantic, CT

Average pressure in May - Willimantic, 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
Willimantic, CT

Average wind speed in May - Willimantic, 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
Willimantic, CT

Average humidity in May - Willimantic, 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
Willimantic, CT

Average rainfall in May - Willimantic, 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
Willimantic, CT

Average rainfall days in May - Willimantic, 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
Willimantic, CT

Average snowfall in May - Willimantic, 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
Willimantic, CT

Average snowfall days in May - Willimantic, 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
Willimantic, CT

Average daylight in May / Average sunshine in May - Willimantic, 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
Willimantic, CT

Average sunshine days in May - Willimantic, 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
Willimantic, CT

Average UV index in May - Willimantic, 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
Willimantic, CT

Average cloud cover in May - Willimantic, 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
Willimantic, CT

Average visibility in May - Willimantic, 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).

Willimantic, Connecticut, USA

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