July weather forecastChilmark, MA
July
Weather in July
July in Chilmark, Massachusetts, is a pleasant summer month, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 68.5°F (20.3°C).Temperature
The shift from June to July sees a slight increase in the average high-temperature, transitioning from a refreshing 64.9°F (18.3°C) to a pleasant 72.9°F (22.7°C). A consistent nighttime average temperature of 68.5°F (20.3°C) is maintained during July.Humidity
The months with the highest humidity are May through July, with an average relative humidity of 83%.Rainfall
In Chilmark, during July, the rain falls for 14.4 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Chilmark, during the entire year, the rain falls for 146.4 days and collects up to 25.47" (647mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Chilmark, the average length of the day in July is 14h and 49min.On the first day of July, sunrise is at 5:13 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:00 pm EDT.
Sunshine
The average sunshine in July is 10.5h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chilmark, MA
- Average high temperature in July: 72.9°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is August (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in July
Chilmark, MA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Chilmark, MA
- Average wind speed in July: 10.9mph
The windiest month (with the highest average wind speed) is January (16.2mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).
Average humidity in July
Chilmark, MA
- Average humidity in July: 83%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in July
Chilmark, MA
- Average rainfall in July: 1.89"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are August and November (1.73").
Average rainfall days in July
Chilmark, MA
- Average rainfall days in July: 14.4 days
The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in July
Chilmark, MA
- Average snowfall in July: 0"
The month with the highest snowfall is March (1.18").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Chilmark, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.3 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
Chilmark, MA
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
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 42min).
Average sunshine days in July
Chilmark, MA
- Average sunshine days in July: 14.7 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (13.5 days).
Average UV index in July
Chilmark, 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
Chilmark, MA
- Average cloud cover in July: 30
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Chilmark, 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).





