Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
An escalation in the average high-temperature is seen with the onset of May, moving from a moderate 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). In May, South Windham experiences an average nighttime temperature of 48.9°F (9.4°C).Humidity
The average relative humidity in May in South Windham is 76%.Rainfall
In South Windham, 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. During 0.2 snowfall days, in May, South Windham aggregates 0.28" (7mm) of snow. Throughout the year, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 33min.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 South Windham, the average sunshine in May is 8.3h.UV index
In South Windham, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does South Windham have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does South Windham have in May?
What is the UV index intensity in May?
Average temperature in May
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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
South 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).
South Windham, Connecticut, USA
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