August weather forecastLisbon, NH
August
Weather in August
The last month of the summer, August, is another warm month in Lisbon, New Hampshire, with an average temperature ranging between max 74.1°F (23.4°C) and min 52.5°F (11.4°C).Temperature
August's onset records a minor alteration in the average high-temperature to a still warm 74.1°F (23.4°C) from July's 76.3°F (24.6°C). An average low-temperature of 52.5°F (11.4°C) is noted in Lisbon during the month of August.Humidity
In August, the average relative humidity is 80%.Rainfall
In August, the rain falls for 16.9 days. Throughout August, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 164.3 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 58min.On the first day of August in Lisbon, sunrise is at 5:36 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:25 pm EDT.
Sunshine
With an average of 9.9h of sunshine, August has the most sunshine of the year in Lisbon.UV index
In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 4 transforms into these recommendations:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lisbon, NH
- Average high temperature in August: 74.1°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 (22.5°F).
- Average low temperature in August: 52.5°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in August
Lisbon, 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
Lisbon, NH
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in August
Lisbon, NH
- Average humidity in August: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in August
Lisbon, NH
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in August
Lisbon, NH
- Average rainfall days in August: 16.9 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in August
Lisbon, NH
- Average snowfall in August: 0"
The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lisbon, NH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Lisbon, NH
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in August
Lisbon, NH
- Average sunshine days in August: 11.2 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in August
Lisbon, NH
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in August
Lisbon, NH
- Average cloud cover in August: 39
The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in August
Lisbon, NH
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, March, September and December (4mi).





