Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's weather records an average high-temperature of a still moderately hot 78.1°F (25.6°C), showing little deviation from July. Throughout August nights, Sullivan registers an average low-temperature of 56.8°F (13.8°C).Humidity
In August, the average relative humidity is 77%.Rainfall
In Sullivan, in August, during 12 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 125.1 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August in Sullivan is 13h and 53min.On the first day of the month, sunrise is at 5:40 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:13 am and sunset at 7:24 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.3h of sunshine.UV index
In Sullivan, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In August, the UV index of 5 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are August temperatures in Sullivan?
What is the average humidity in August in Sullivan?
How many days does it rain in August in Sullivan?
When it does not snow in Sullivan?
What is the average length of the day in August in Sullivan?
When is the sunrise / sunset in August in Sullivan?
What month has the most sunshine in Sullivan?
How long on average sun shines in August in Sullivan?
What is the UV index reading in August in Sullivan?
Average temperature in August
Sullivan, NH
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 56.8°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in August
Sullivan, NH
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Sullivan, NH
- Average wind speed in August: 5.1mph
The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in August
Sullivan, NH
- Average humidity in August: 77%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in August
Sullivan, NH
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days in August
Sullivan, NH
- Average rainfall days in August: 12 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in August
Sullivan, NH
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Sullivan, 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
Sullivan, NH
- Average daylight in August: 13h and 5min
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 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in August
Sullivan, NH
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in August
Sullivan, NH
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
Sullivan, NH
- Average cloud cover in August: 35
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Sullivan, NH
- Average visibility in August: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Sullivan, New Hampshire, USA
Weather forecast for your location
2. Allow the app to use your location
