May weather forecast
Darien, CT

Weather in May

May, the last month of the spring in Darien, is a comfortable month, with an average temperature varying between 53.1°F (11.7°C) and 65.8°F (18.8°C).

Temperature

In Darien, Connecticut, the average high-temperature in May rises from a moderate 55.4°F (13°C) in April to an enjoyable 65.8°F (18.8°C). The average low-temperature, in Darien, Connecticut, is 53.1°F (11.7°C).

Humidity

May is the most humid month, with an average relative humidity of 76%.

Rainfall

In Darien, Connecticut, during May, the rain falls for 17.3 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Darien, during the entire year, the rain falls for 166.4 days and collects up to 38.7" (983mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Darien is 14h and 30min.
On the first day of the month, sunrise is at 5:51 am and sunset at 7:50 pm. On the last day of May, in Darien, sunrise is at 5:24 am and sunset at 8:19 pm EDT.

Sunshine

The average sunshine in May in Darien is 8.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Darien?

The average high-temperature, in May, is 65.8°F (18.8°C), while the average low-temperature is 53.1°F (11.7°C).

What is the most humid month in Darien?

The most humid month in Darien is May, with an average relative humidity of 76%.

What is the average humidity in May in Darien?

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

How many days does it rain in May in Darien?

In May, in Darien, the rain falls for 17.3 days. Throughout May, 3.19" (81mm) of precipitation is accumulated.

When it does not snow in Darien?

May through October are months without snowfall.

Does it snow in Darien in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Darien have in May?

In Darien, Connecticut, the average day length in May is 14h and 30min.

When are sunrise and sunset in May in Darien?

On the first day of May in Darien, Connecticut, sunrise is at 5:51 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:19 pm EDT.

How long on average sun shines in May in Darien?

In Darien, the average sunshine duration in May is 8.6h.

What is the UV index reading in May in Darien?

In Darien, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Darien, CT

Average temperature in May - Darien, CT
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in May
Darien, CT

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

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Darien, CT

Average wind speed in May - Darien, CT
  • Average wind speed in May: 7.6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in May
Darien, CT

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

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April, August and November (72%).

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Average rainfall in May
Darien, CT

Average rainfall in May - Darien, CT
  • Average rainfall in May: 3.19"

The wettest months (with the highest rainfall) are July and December (4.17").
The driest month (with the least rainfall) is January (2.48").

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Average rainfall days in May
Darien, CT

Average rainfall days in May - Darien, CT
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in May
Darien, CT

Average snowfall in May - Darien, CT
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Darien, CT

Average snowfall days in May - Darien, CT
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Darien, CT
  • Average daylight in May: 14h and 30min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in May: 8h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in May
Darien, CT

Average sunshine days in May - Darien, CT
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in May
Darien, CT

Average UV index in May - Darien, 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).

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Average cloud cover in May
Darien, CT

Average cloud cover in May - Darien, CT
  • Average cloud cover in May: 45

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in May
Darien, CT

Average visibility in May - Darien, CT
  • Average visibility in May: 6mi

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

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