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, Foster experiences a temperature shift, with the average high-temperature moving from a mild 55.6°F (13.1°C) in April to an enjoyable 66.7°F (19.3°C). An average low-temperature of 48.9°F (9.4°C) is observed in Foster during the May nights.Humidity
In Foster, the average relative humidity in May is 76%.Rainfall
In Foster, in May, it is raining for 16.9 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, in Foster, there are 163 rainfall days, and 33.86" (860mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Foster, Rhode Island. May is the last month it regularly snows. During 0.2 snowfall days, in May, Foster aggregates 0.28" (7mm) of snow. In Foster, during the entire year, snow falls for 30.6 days and aggregates up to 14.02" (356mm) of snow.Daylight
The average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May in Foster is 8.2h.UV index
In May, the average daily maximum UV index in Foster is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during May leads to these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in May in Foster?
What is the average humidity in May in Foster?
How much does it rain in Foster in May?
What is the last month it snows in Foster?
What is the average length of the day in May in Foster?
What time are sunrise and sunset in May in Foster?
How long on average sun shines in May in Foster?
What is the UV index reading in May in Foster?
Average temperature in May
Foster, RI
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Foster, RI
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Foster, RI
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Foster, RI
- Average humidity in May: 76%
The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Foster, RI
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Foster, RI
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Foster, RI
- Average snowfall in May: 0.28"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Foster, RI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (7.8 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
Foster, RI
- 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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Foster, RI
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in May
Foster, RI
- 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
Foster, RI
- Average cloud cover in May: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Foster, RI
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Foster, Rhode Island, USA
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