May weather forecastNorwell, MA
May
Weather in May
May, the last month of the spring in Norwell, is a moderate month, with an average temperature fluctuating between 60.6°F (15.9°C) and 50°F (10°C).Temperature
The commencement of May sees a shift in the average high-temperature, moving from a cool 51.4°F (10.8°C) in April to a moderate 60.6°F (15.9°C). Norwell experiences a steady low-temperature of 50°F (10°C) throughout May.Humidity
In Norwell, the average relative humidity in May is 78%.Rainfall
In Norwell, in May, it is raining for 12 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 119.1 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
In Norwell, snow does not fall in May through October.Daylight
In Norwell, the average length of the day in May is 14h and 36min.On the first day of May, sunrise is at 5:37 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:12 pm EDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Norwell, MA
- Average high temperature in May: 60.6°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in May
Norwell, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Norwell, MA
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in May
Norwell, MA
- Average humidity in May: 78%
The months with the highest relative humidity are June and July (79%).
The months with the lowest relative humidity are April and November (74%).
Average rainfall in May
Norwell, MA
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is July (1.26").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in May
Norwell, MA
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in May
Norwell, MA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Norwell, MA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Norwell, MA
- Average daylight in May: 14h and 36min
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 36min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Norwell, MA
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (15.9 days).
Average UV index in May
Norwell, MA
- Average UV index in May: 5
The months with the highest UV index are 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
Norwell, MA
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Norwell, 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).





