August weather forecastWashington, NH
August
Weather in August
August, the last month of the summer in Washington, is also a moderately hot month, with an average temperature ranging between max 76.5°F (24.7°C) and min 56.3°F (13.5°C).Temperature
August begins with an average high-temperature of a still warm 76.5°F (24.7°C), reflecting close similarity to the preceding month. During the nights in August, an average low-temperature of 56.3°F (13.5°C) is observed.Humidity
In August, the average relative humidity is 78%.Rainfall
In Washington, in August, it is raining for 11.9 days, with typically 0.98" (25mm) of accumulated precipitation. In Washington, during the entire year, the rain falls for 121.9 days and collects up to 13.58" (345mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 54min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:12 am and sunset at 7:24 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 5 during August translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Washington, NH
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in August: 56.3°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in August
Washington, 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 (29.91"Hg).
Average wind speed in August
Washington, NH
- Average wind speed in August: 5mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Washington, NH
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Washington, NH
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in August
Washington, NH
- Average rainfall days in August: 11.9 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in August
Washington, NH
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Washington, NH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Washington, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in August
Washington, NH
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is April (12.9 days).
Average UV index in August
Washington, NH
- Average UV index in August: 5
The months with the highest UV index are May, 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
Washington, NH
- Average cloud cover in August: 37
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in August
Washington, NH
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
