May weather forecast
Collinsville, CT

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Weather in May

May, the last month of the spring in Collinsville, is an enjoyable month, with an average temperature ranging between min 48.7°F (9.3°C) and max 67.6°F (19.8°C).

Temperature

Collinsville's May weather brings a rise in high-temperatures, moving from a mild 56.1°F (13.4°C) in April to a comfortable 67.6°F (19.8°C). Collinsville throughout May, experiences an average nighttime temperature of 48.7°F (9.3°C).

Humidity

In Collinsville, the average relative humidity in May is 74%.

Rainfall

In May, in Collinsville, the rain falls for 16.9 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. In Collinsville, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Collinsville. During 0.2 snowfall days, in May, Collinsville aggregates 0.24" (6mm) of snow. Throughout the year, there are 33.1 snowfall days, and 18.39" (467mm) of snow is accumulated.

Daylight

The average length of the day in May in Collinsville is 14h and 34min.
On the first day of the month, sunrise is at 5:46 am and sunset at 7:50 pm. On the last day of May, in Collinsville, sunrise is at 5:19 am and sunset at 8:19 pm EDT.

Sunshine

The average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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 Collinsville?

May temperatures in Collinsville vary between a high-temperature of 67.6°F (19.8°C) and a low-temperature of 48.7°F (9.3°C).

What is the average humidity in May in Collinsville?

In May, the average relative humidity in Collinsville, Connecticut, is 74%.

How many days does it rain in May in Collinsville?

In Collinsville, in May, it is raining for 16.9 days, with typically 2.6" (66mm) of accumulated precipitation.

What is the last month it snows in Collinsville?

May is the last month it regularly snows in Collinsville. During 0.2 snowfall days, in May, Collinsville aggregates 0.24" (6mm) of snow.

What is the average length of the day in May in Collinsville?

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

When are sunrise and sunset in May in Collinsville?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 7:50 pm. On the last day of the month, in Collinsville, sunrise is at 5:19 am and sunset at 8:19 pm EDT.

How many hours of sunshine does Collinsville have in May?

In May, the average sunshine duration in Collinsville, Connecticut, is 8.4h.

What is the UV index reading in May in Collinsville?

The average daily maximum UV index in May is 5. A UV Index estimate 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Collinsville, CT

Average temperature in May - Collinsville, CT
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in May
Collinsville, CT

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Collinsville, CT

Average wind speed in May - Collinsville, CT
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in May
Collinsville, CT

Average humidity in May - Collinsville, CT
  • Average humidity in May: 74%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in May
Collinsville, CT

Average rainfall in May - Collinsville, CT
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in May
Collinsville, CT

Average rainfall days in May - Collinsville, CT
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in May
Collinsville, CT

Average snowfall in May - Collinsville, CT
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Collinsville, CT

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

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Collinsville, 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 months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Collinsville, CT

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

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in May
Collinsville, CT

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

The months with the highest UV index are June and July (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
Collinsville, CT

Average cloud cover in May - Collinsville, CT
  • Average cloud cover in May: 47

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Collinsville, CT

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

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

Collinsville, Connecticut, USA

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