May weather forecastRehoboth, MA
May
Weather in May
The last month of the spring, May, is a comfortable month in Rehoboth, Massachusetts, with an average temperature varying between 65.8°F (18.8°C) and 50°F (10°C).Temperature
The shift into May brings an increase in the average high-temperature, moving from a mild 55.4°F (13°C) in April to a still refreshing 65.8°F (18.8°C). An average nighttime temperature of 50°F (10°C) is witnessed in Rehoboth throughout May.Humidity
In Rehoboth, Massachusetts, the average relative humidity in May is 76%.Rainfall
In Rehoboth, in May, it is raining for 14.2 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 144.3 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Rehoboth aggregates 0.16" (4mm) of snow. Throughout the year, there are 22 snowfall days, and 7.83" (199mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 34min.On the first day of the month, sunrise is at 5:40 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:12 am and sunset at 8:13 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rehoboth, MA
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Rehoboth, 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
Rehoboth, MA
- Average wind speed in May: 8mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Rehoboth, MA
- Average humidity in May: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Rehoboth, MA
- Average rainfall in May: 1.77"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in May
Rehoboth, MA
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Rehoboth, MA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Rehoboth, MA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (5.9 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
Rehoboth, 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 30min
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 48min).
Average sunshine days in May
Rehoboth, MA
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in May
Rehoboth, 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
Rehoboth, MA
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Rehoboth, 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).





