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
South Deerfield sees a rise in temperature during May, with average high-temperatures transitioning from a cool 54.5°F (12.5°C) in April to a comfortable 67.5°F (19.7°C). An average low-temperature of 46.9°F (8.3°C) marks the nights throughout May.Humidity
The average relative humidity in May is 75%.Rainfall
In South Deerfield, in May, it is raining for 15.1 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 147.7 rainfall days, and 28.9" (734mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, South Deerfield aggregates 0.24" (6mm) of snow. Throughout the year, there are 38.7 snowfall days, and 23.07" (586mm) of snow is accumulated.Daylight
In South Deerfield, the average length of the day in May is 14h and 38min.On the first day of the month, sunrise is at 5:44 am and sunset at 7:50 pm. On the last day of May, sunrise is at 5:15 am and sunset at 8:20 pm EDT.
Sunshine
In South Deerfield, the average sunshine in May is 8.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does South Deerfield have in May?
When is the highest UV index?
What is the UV index intensity in May?
Average temperature in May
South Deerfield, MA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
South Deerfield, MA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
South Deerfield, MA
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
South Deerfield, MA
- Average humidity in May: 75%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
South Deerfield, MA
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in May
South Deerfield, MA
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in May
South Deerfield, MA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
South Deerfield, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
South Deerfield, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
South Deerfield, MA
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in May
South Deerfield, 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
South Deerfield, MA
- Average cloud cover in May: 46
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
South Deerfield, MA
- Average visibility in May: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
South Deerfield, Massachusetts, USA
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