August weather forecastWilton, NH
August
Weather in August
August, the last month of the summer in Wilton, is another warm month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 59.4°F (15.2°C).Temperature
August's advent denotes a minor fluctuation in the average high-temperature to a still warm 79.3°F (26.3°C) from July's 81.5°F (27.5°C). Wilton throughout August, records an average low-temperature of 59.4°F (15.2°C).Humidity
The average relative humidity in August is 76%.Rainfall
In Wilton, during August, the rain falls for 13.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Wilton, during the entire year, the rain falls for 146.9 days and collects up to 28.15" (715mm) of precipitation.Snowfall
June through September are months without snowfall in Wilton, New Hampshire.Daylight
In Wilton, New Hampshire, the average length of the day in August is 13h and 53min.On the first day of August, sunrise is at 5:39 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:22 pm EDT.
Sunshine
With an average of 10.4h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Wilton, NH
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 59.4°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in August
Wilton, NH
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Wilton, NH
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in August
Wilton, NH
- Average humidity in August: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in August
Wilton, NH
- Average rainfall in August: 1.97"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in August
Wilton, NH
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in August
Wilton, NH
- Average snowfall in August: 0"
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 August
Wilton, NH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Wilton, NH
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Wilton, NH
- Average sunshine days in August: 15.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in August
Wilton, NH
- Average UV index in August: 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 August
Wilton, NH
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Wilton, NH
- Average visibility in August: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





