August weather forecastJackson, NH
August
Weather in August
August maintains the summer’s momentum, with high temperatures only marginally lower than July’s, dipping to 74.8°F (23.8°C). While there is an increase in rainfall to 0.83" (21mm), the weather predominantly remains sunny with more than 10 hours of sunshine daily. With summer at its fag end, outdoor enthusiasts find the weather still conducive for late-summer adventures before the chilly fall sets in.Temperature
The initiation of August sees an average high-temperature of a still moderately hot 74.8°F (23.8°C), showing minor variations from the previous month. During August, Jackson reports a marked contrast from daily peak temperatures, with an average nighttime reading of 53.2°F (11.8°C).Humidity
In August, the average relative humidity is 79%.Rainfall
In Jackson, in August, it is raining for 9.7 days, with typically 0.83" (21mm) of accumulated precipitation. In Jackson, during the entire year, the rain falls for 90.5 days and collects up to 11.61" (295mm) of precipitation.Snowfall
In Jackson, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 58min.On the first day of August, sunrise is at 5:33 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:22 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10.1h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 in August translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jackson, NH
- Average high temperature in August: 74.8°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in August: 53.2°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in August
Jackson, NH
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Jackson, NH
- Average wind speed in August: 4.3mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in August
Jackson, NH
- Average humidity in August: 79%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (77%).
Average rainfall in August
Jackson, NH
- Average rainfall in August: 0.83"
The wettest months (with the highest rainfall) are April and October (1.46").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in August
Jackson, NH
- Average rainfall days in August: 9.7 days
The months with the highest number of rainy days are May and July (10.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in August
Jackson, NH
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Jackson, NH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jackson, NH
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Jackson, NH
- Average sunshine days in August: 18.8 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (18.2 days).
Average UV index in August
Jackson, NH
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in August
Jackson, NH
- Average cloud cover in August: 38
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in August
Jackson, NH
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, August, November and December (5mi).
The months with the lowest visibility are January, February, March, September and October (4mi).
