July weather forecastGrand Isle, ME
July
Weather in July
July in Grand Isle, Maine, is a warm summer month, with an average temperature fluctuating between 74.3°F (23.5°C) and 53.6°F (12°C).Temperature
In Grand Isle, temperatures reach their average annual highs in July, measuring 74.3°F (23.5°C) and a minimum average of 53.6°F (12°C).Humidity
In Grand Isle, Maine, the average relative humidity in July is 78%.Rainfall
In Grand Isle, during July, the rain falls for 17.1 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
In Grand Isle, snow does not fall in June through September.Daylight
In Grand Isle, the average length of the day in July is 15h and 29min.On the first day of the month, sunrise is at 4:40 am and sunset at 8:32 pm. On the last day of July, sunrise is at 5:10 am and sunset at 8:07 pm EDT.
Sunshine
In Grand Isle, the average sunshine in July is 9.3h.UV index
June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In July, a daily UV index of 5 turns into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Grand Isle, ME
- Average high temperature in July: 74.3°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in July: 53.6°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in July
Grand Isle, ME
- Average pressure in July: 29.89"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in July
Grand Isle, ME
- Average wind speed in July: 6.6mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in July
Grand Isle, ME
- Average humidity in July: 78%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in July
Grand Isle, ME
- Average rainfall in July: 2.64"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in July
Grand Isle, ME
- Average rainfall days in July: 17.1 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in July
Grand Isle, ME
- Average snowfall in July: 0"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Grand Isle, ME
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Grand Isle, ME
- Average daylight in July: 15h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 9h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in July
Grand Isle, ME
- Average sunshine days in July: 12.1 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in July
Grand Isle, ME
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in July
Grand Isle, ME
- Average cloud cover in July: 42
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in July
Grand Isle, ME
- Average visibility in July: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
