July weather forecastMarstons Mills, MA
July
Weather in July
July is a moderately hot summer month in Marstons Mills, Massachusetts, with an average temperature fluctuating between 67.6°F (19.8°C) and 73.4°F (23°C).Temperature
The average high-temperature mildly increases in July, edging from a comfortable 65.5°F (18.6°C) in June to a moderately hot 73.4°F (23°C). July's average low-temperature is a refreshing 67.6°F (19.8°C), reflecting a minor difference from the day's peak temperatures.Humidity
May through July, with an average relative humidity of 82%, are the most humid months.Rainfall
In July, the rain falls for 14.9 days. Throughout July, 2.32" (59mm) of precipitation is accumulated. In Marstons Mills, during the entire year, the rain falls for 152.1 days and collects up to 32.48" (825mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in July is 14h and 50min.On the first day of July, sunrise is at 5:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:00 pm EDT.
Sunshine
In July, the average sunshine in Marstons Mills is 10.4h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in Marstons Mills. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In July, the maximum UV index of 6 suggests this advice:
Ward off overexposure. Defence against solar harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Marstons Mills, MA
- Average high temperature in July: 73.4°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in July: 67.6°F
The month with the highest average low temperature is August (68.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in July
Marstons Mills, MA
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Marstons Mills, MA
- Average wind speed in July: 10mph
The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in July
Marstons Mills, MA
- Average humidity in July: 82%
The months with the highest relative humidity are May, June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in July
Marstons Mills, MA
- Average rainfall in July: 2.32"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in July
Marstons Mills, MA
- Average rainfall days in July: 14.9 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in July
Marstons Mills, MA
- Average snowfall in July: 0"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Marstons Mills, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Marstons Mills, MA
- Average daylight in July: 14h and 48min
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 July: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in July
Marstons Mills, MA
- Average sunshine days in July: 14.6 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is April (13 days).
Average UV index in July
Marstons Mills, MA
- Average UV index in July: 6
The months with the highest UV index are 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 July
Marstons Mills, MA
- Average cloud cover in July: 30
The months with the most cloud cover are March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Marstons Mills, MA
- Average visibility in July: 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).





