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
With the onset of May, Norfolk's average high-temperature experiences a rise, moving from April's refreshing 56.1°F (13.4°C) to a comfortable 67.5°F (19.7°C). May nights experience a consistent temperature drop to a frosty 49.5°F (9.7°C).Humidity
The average relative humidity in May in Norfolk is 75%.Rainfall
In Norfolk, in May, during 12.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Norfolk, during the entire year, the rain falls for 116.7 days and collects up to 10.91" (277mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Norfolk aggregates 0.12" (3mm) of snow. Throughout the year, in Norfolk, Massachusetts, there are 23.4 snowfall days, and 6.02" (153mm) of snow is accumulated.Daylight
The average length of the day in May in Norfolk is 14h and 35min.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
The average sunshine in May in Norfolk is 8.3h.UV index
In May, the average daily maximum UV index in Norfolk is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What are May temperatures in Norfolk?
What is the average humidity in May in Norfolk?
How many days does it rain in May in Norfolk?
What is the last month it snows in Norfolk?
What is the average length of the day in May in Norfolk?
What time are sunrise and sunset in May in Norfolk?
How long on average sun shines in May in Norfolk?
What is the UV index intensity in May in Norfolk?
Average temperature in May
Norfolk, MA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Norfolk, 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
Norfolk, MA
- Average wind speed in May: 7.3mph
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
Norfolk, MA
- Average humidity in May: 75%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Norfolk, MA
- Average rainfall in May: 1.02"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in May
Norfolk, MA
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in May
Norfolk, MA
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Norfolk, MA
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Norfolk, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Norfolk, MA
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).
Average UV index in May
Norfolk, 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
Norfolk, MA
- Average cloud cover in May: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Norfolk, MA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
Norfolk, Massachusetts, USA
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