May weather forecast and climate
Newtown, CT

Weather in May

The last month of the spring, May, is an enjoyable month in Newtown, Connecticut, with average temperature fluctuating between 67.3°F (19.6°C) and 50.2°F (10.1°C).

Temperature

In Newtown, the average high-temperature rises, from a mild 56.1°F (13.4°C) in April, to an enjoyable 67.3°F (19.6°C). In Newtown, in May, the average low-temperature is 50.2°F (10.1°C).

Humidity

The average relative humidity in Newtown, Connecticut, is 76%.

Rainfall

In Newtown, it is raining for 17.8 days, with typically 3.07" (78mm) of accumulated precipitation. In Newtown, during the entire year, the rain falls for 169.7 days and collects up to 36.93" (938mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Newtown aggregates 0.2" (5mm) of snow. In Newtown, Connecticut, during the entire year, snow falls for 34.5 days, and aggregates up to 17.01" (432mm) of snow.

Daylight

In Newtown, the average length of the day is 14.5h.

Sunshine

In May, the average sunshine in Newtown is 8.5h.

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 unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Newtown?

The average high-temperature, in May, is 67.3°F (19.6°C), while the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in May in Newtown?

In May, the average relative humidity is 76%.

How many days does it rain in May in Newtown?

In Newtown, Connecticut, in May, it is raining for 17.8 days, with typically 3.07" (78mm) of accumulated precipitation.

What is the last month it snows in Newtown?

May is the last month it regularly snows in Newtown. During 0.1 snowfall days, in May, Newtown aggregates 0.2" (5mm) of snow.

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

In Newtown, Connecticut, the average length of the day in May is 14.5h.

How many hours of sunshine does Newtown have in May?

The average sunshine in May is 8.5h.

How high is the UV index in May in Newtown?

The average daily maximum UV index in May in Newtown is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Newtown, CT

Average temperature in May - Newtown, CT
  • Average high temperature in May: 67.3°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 (33.4°F).

  • Average low temperature in May: 50.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in May
Newtown, CT

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

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

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Average wind speed in May
Newtown, CT

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

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Newtown, CT

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

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

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Average rainfall in May
Newtown, CT

Average rainfall in May - Newtown, CT
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is December (4.02").
The driest months (with the least rainfall) are January and September (2.4").

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Average rainfall days in May
Newtown, CT

Average rainfall days in May - Newtown, CT
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in May
Newtown, CT

Average snowfall in May - Newtown, CT
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (4.37").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Newtown, CT

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

The month with the highest number of snowfall days is February (9.5 days).
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
Newtown, CT

Average daylight in May / Average sunshine in May - Newtown, CT
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 8.5h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in May
Newtown, CT

Average sunshine days in May - Newtown, CT
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index in May
Newtown, CT

Average UV index in May - Newtown, 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
Newtown, CT

Average cloud cover in May - Newtown, CT
  • Average cloud cover in May: 46

Months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
Newtown, CT

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

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

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