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's arrival signals a temperature shift, moving from a moderate 55.9°F (13.3°C) in April to a still refreshing 66.9°F (19.4°C). Westwood anticipates an average minimum temperature of 49.6°F (9.8°C) in the month of May.Humidity
In May, the average relative humidity in Westwood is 74%.Rainfall
In Westwood, in May, during 10.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 97.1 rainfall days, and 7.13" (181mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Westwood aggregates 0.08" (2mm) of snow. Throughout the year, there are 19.5 snowfall days, and 3.74" (95mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 36min.On the first day of the month, sunrise is at 5:39 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:11 am and sunset at 8:14 pm EDT.
Sunshine
In Westwood, Massachusetts, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
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 are sunrise and sunset in May?
How long on average sun shines in May in Westwood?
What is the UV index reading in May?
Average temperature in May
Westwood, MA
- Average high temperature in May: 66.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Westwood, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Westwood, MA
- Average wind speed in May: 7.2mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in May
Westwood, MA
- Average humidity in May: 74%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in May
Westwood, MA
- Average rainfall in May: 0.59"
The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in May
Westwood, MA
- Average rainfall days in May: 10.2 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in May
Westwood, MA
- Average snowfall in May: 0.08"
The months with the highest snowfall are March and December (0.91").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Westwood, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5 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
Westwood, MA
- 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Westwood, MA
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in May
Westwood, MA
- 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
Westwood, MA
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Westwood, MA
- 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).
Westwood, Massachusetts, USA
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