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
In May, the meteorological conditions change with the average high-temperature moving from a fresh 53.1°F (11.7°C) in April to a refreshing 66°F (18.9°C). During the nights in May, Richmond observes an average low-temperature of 46°F (7.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Richmond, during May, the rain falls for 10.5 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 88.8 rainfall days, and 7.32" (186mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Richmond aggregates 0.12" (3mm) of snow. Throughout the year, in Richmond, there are 33.4 snowfall days, and 5.87" (149mm) of snow is accumulated.Daylight
The average length of the day in May in Richmond is 14h and 37min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:23 pm EDT.
Sunshine
In Richmond, the average sunshine in May is 8.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. 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: The maximum UV index of 5 during May translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the average May temperature in Richmond?
What is the average humidity in May in Richmond?
How much does it rain in Richmond in May?
What is the last month it snows in Richmond?
What is the average length of the day in May in Richmond?
What time are sunrise and sunset in May in Richmond?
How long on average sun shines in May in Richmond?
When is the highest UV index in Richmond?
What is the UV index reading in May in Richmond?
Average temperature in May
Richmond, MA
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in May
Richmond, MA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Richmond, MA
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Richmond, MA
- Average humidity in May: 78%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Richmond, MA
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is July (0.83").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in May
Richmond, MA
- Average rainfall days in May: 10.5 days
The month with the highest number of rainy days is July (11 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in May
Richmond, MA
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (1.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Richmond, MA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Richmond, 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 6min).
- Average sunshine in May: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in May
Richmond, MA
- Average sunshine days in May: 17.4 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is June (17.1 days).
Average UV index in May
Richmond, MA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Richmond, MA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in May
Richmond, MA
- Average visibility in May: 5mi
The months with the highest visibility are April and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and November (5mi).
Richmond, Massachusetts, USA
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