May weather forecastGlen Grove Annex, MA
May
Weather in May
May, the last month of the spring in Glen Grove Annex, is an enjoyable month, with an average temperature fluctuating between 47.5°F (8.6°C) and 66.6°F (19.2°C).Temperature
Glen Grove Annex's May weather brings a rise in high-temperatures, moving from a fresh 54.5°F (12.5°C) in April to a refreshing 66.6°F (19.2°C). An average low-temperature of 47.5°F (8.6°C) is common during the nights of May.Humidity
In Glen Grove Annex, Massachusetts, the average relative humidity in May is 76%.Rainfall
In Glen Grove Annex, during May, the rain falls for 16.5 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Glen Grove Annex, Massachusetts, during the entire year, the rain falls for 147.4 days and collects up to 29.76" (756mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Glen Grove Annex. During 0.1 snowfall days, in May, Glen Grove Annex aggregates 0.2" (5mm) of snow. In Glen Grove Annex, during the entire year, snow falls for 39.9 days and aggregates up to 23.82" (605mm) of snow.Daylight
The average length of the day in May is 14h and 36min.On the first day of May, sunrise is at 5:42 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine is 7.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Glen Grove Annex, MA
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Glen Grove Annex, 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
Glen Grove Annex, MA
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Glen Grove Annex, MA
- Average humidity in May: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Glen Grove Annex, MA
- Average rainfall in May: 2.44"
The wettest months (with the highest rainfall) are October and November (2.76").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Glen Grove Annex, MA
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Glen Grove Annex, MA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Glen Grove Annex, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Glen Grove Annex, 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: 7h and 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Glen Grove Annex, MA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in May
Glen Grove Annex, MA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Glen Grove Annex, MA
- Average cloud cover in May: 51
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in May
Glen Grove Annex, 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).
