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
The commencement of May sees a shift in the average high-temperature, moving from a moderate 55.8°F (13.2°C) in April to an enjoyable 67.5°F (19.7°C). In May, the average low-temperature is a frosty 48°F (8.9°C).Humidity
The average relative humidity in May is 76%.Rainfall
In Harwinton, during May, the rain falls for 16.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Harwinton, during the entire year, the rain falls for 157.7 days and collects up to 32.72" (831mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Harwinton aggregates 0.12" (3mm) of snow. Throughout the year, there are 40 snowfall days, and 20.55" (522mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 34min.On the first day of May, sunrise is at 5:47 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:20 pm EDT.
Sunshine
In Harwinton, the average sunshine in May is 8.2h.UV index
In Harwinton, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Harwinton have in May?
How high is the UV index in May?
Average temperature in May
Harwinton, CT
- Average high temperature in May: 67.5°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 (31.3°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in May
Harwinton, 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
Harwinton, CT
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Harwinton, CT
- Average humidity in May: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Harwinton, CT
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in May
Harwinton, CT
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in May
Harwinton, CT
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harwinton, CT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Harwinton, 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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Harwinton, CT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Harwinton, CT
- Average UV index in May: 5
The month with the highest UV index is June (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
Harwinton, CT
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in May
Harwinton, CT
- Average visibility in May: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Harwinton, Connecticut, USA
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