July weather forecastMarion, MA
July
Weather in July
July is a moderately hot summer month in Marion, Massachusetts, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 66.2°F (19°C).Temperature
As July begins, there's a slight increase in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) in June to a moderately hot 76.3°F (24.6°C). July nights in Marion, Massachusetts, cool down to an average low-temperature of 66.2°F (19°C).Humidity
June and July, with an average relative humidity of 80%, are the most humid months.Rainfall
In Marion, in July, it is raining for 14.1 days, with typically 1.54" (39mm) of accumulated precipitation. In Marion, during the entire year, the rain falls for 136.3 days and collects up to 15.63" (397mm) of precipitation.Snowfall
In Marion, snow does not fall in June through September.Ocean temperature
In July, the average ocean temperature in Marion is 66.2°F (19°C).Note: Swimming in 66.2°F (19°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).
Daylight
In Marion, the average length of the day in July is 14h and 51min.On the first day of July, sunrise is at 5:12 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:01 pm EDT.
Sunshine
In July, the average sunshine is 10.5h.UV index
The months with the highest UV index in Marion are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In July, the maximum UV index of 6 suggests this advice:
Deflect overexposure. Sun protection is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Marion, MA
- Average high temperature in July: 76.3°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in July: 66.2°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in July
Marion, 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
Marion, MA
- Average wind speed in July: 8.5mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in July
Marion, MA
- Average humidity in July: 80%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in July
Marion, MA
- Average rainfall in July: 1.54"
The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in July
Marion, MA
- Average rainfall days in July: 14.1 days
The months with the highest number of rainy days are May and July (14.1 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in July
Marion, MA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Marion, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in July
Marion, MA
- Average sea temperature in July: 66.2°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in July /
Average sunshine in July
Marion, 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 30min
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 48min).
Average sunshine days in July
Marion, MA
- Average sunshine days in July: 14.8 days
The month with the most sunshine days is December (17.7 days).
The month with the least sunshine days is April (14.3 days).
Average UV index in July
Marion, MA
- Average UV index in July: 6
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 July
Marion, MA
- Average cloud cover in July: 31
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Marion, 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).





