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
May brings with it a considerable temperature increase, with average high-temperatures rising from April's chilly 49.8°F (9.9°C) to a comfortable 64.8°F (18.2°C). Westford experiences an average nighttime temperature of 45.1°F (7.3°C) in the month of May.Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 76%.Rainfall
In Westford, during May, the rain falls for 16.8 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 172.5 rainfall days, and 28.07" (713mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, Westford aggregates 0.43" (11mm) of snow. Throughout the year, there are 92.6 snowfall days, and 43.98" (1117mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 50min.On the first day of the month, sunrise is at 5:40 am and sunset at 7:57 pm. On the last day of May, in Westford, Vermont, sunrise is at 5:10 am and sunset at 8:29 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The average daily maximum UV index in May in Westford is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in May translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Westford?
What are the least humid months in Westford?
What is the average humidity in May in Westford?
How many days does it rain in May in Westford?
What is the last month it snows in Westford?
What is the average length of the day in May in Westford?
When is the sunrise / sunset in May in Westford?
How long on average sun shines in May in Westford?
What is the UV index reading in May in Westford?
Average temperature in May
Westford, VT
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Westford, VT
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Westford, VT
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Westford, VT
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Westford, VT
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in May
Westford, VT
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is January (9 days).
Average snowfall in May
Westford, VT
- Average snowfall in May: 0.43"
The month with the highest snowfall is February (9.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Westford, VT
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Westford, VT
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in May
Westford, VT
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (6 days).
Average UV index in May
Westford, VT
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Westford, VT
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Westford, VT
- Average visibility in May: 6mi
The months with the highest visibility are May, July and August (6mi).
The months with the lowest visibility are January, February and March (4mi).
Westford, Vermont, USA
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