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
The advent of August presents an average high-temperature of a still moderately hot 75.7°F (24.3°C), maintaining a close correlation with the preceding month. The low-temperature averages to a cool 55°F (12.8°C) during the nights of August.Humidity
In August, the average relative humidity is 79%.Rainfall
In Londonderry, in August, during 12.7 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Londonderry, during the entire year, the rain falls for 133 days and collects up to 12.95" (329mm) of precipitation.Snowfall
In Londonderry, snow does not fall in June through September.Daylight
In August, the average length of the day in Londonderry is 13h and 54min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:27 pm EDT.
Sunshine
July and August, with an average of 10h of sunshine, are months with the most sunshine in Londonderry.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Londonderry. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in August translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Londonderry in August?
What is the average humidity in August in Londonderry?
How many days does it rain in August in Londonderry?
When it does not snow in Londonderry?
How many hours of daylight does Londonderry have in August?
When are sunrise and sunset in August in Londonderry?
What is the month with the most sunshine in Londonderry?
How long on average sun shines in August in Londonderry?
When is the highest UV index in Londonderry?
What is the UV index reading in August in Londonderry?
Average temperature in August
Londonderry, VT
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in August
Londonderry, VT
- 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
Londonderry, VT
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Londonderry, VT
- Average humidity in August: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in August
Londonderry, VT
- Average rainfall in August: 1.02"
The wettest months (with the highest rainfall) are April and October (1.26").
The driest month (with the least rainfall) is March (0.79").
Average rainfall days in August
Londonderry, VT
- Average rainfall days in August: 12.7 days
The month with the highest number of rainy days is May (14.6 days).
The months with the least rainy days are January and February (7.3 days).
Average snowfall in August
Londonderry, VT
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Londonderry, VT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Londonderry, VT
- 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 0min).
- Average sunshine in August: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in August
Londonderry, VT
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in August
Londonderry, VT
- 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
Londonderry, VT
- Average cloud cover in August: 37
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in August
Londonderry, VT
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Londonderry, Vermont, USA
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