August weather forecast and climate
Hanover, NH

The last month of the summer, August, is another warm month in Hanover, New Hampshire, with average temperature ranging between max 76.3°F (24.6°C) and min 54.9°F (12.7°C).

Temperature

In Hanover, New Hampshire, the average high-temperature is relatively the same as in July - a still warm 76.3°F (24.6°C). In August, the average low-temperature is 54.9°F (12.7°C).

Humidity

In Hanover, the average relative humidity in August is 79%.

Rainfall

In Hanover, during August, the rain falls for 15.9 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Hanover, New Hampshire, during the entire year, the rain falls for 156.9 days and collects up to 28.23" (717mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13.9h.

Sunshine

The month with the most sunshine is August, with an average of 10.1h of sunshine.

UV index

Months with the highest UV index in Hanover are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Hanover?

In Hanover, in August, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 54.9°F (12.7°C).

What is the average humidity in August in Hanover?

The average relative humidity in August in Hanover is 79%.

How many days does it rain in August in Hanover?

In Hanover, New Hampshire, during August, the rain falls for 15.9 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Hanover?

In Hanover snow does not fall in June through September.

How many hours of daylight does Hanover have in August?

In August, the average length of the day in Hanover, New Hampshire, is 13.9h.

What month has the most sunshine in Hanover?

The month with the most sunshine is August, with an average of 10.1h of sunshine.

How many hours of sunshine does Hanover have in August?

The average sunshine in August in Hanover, New Hampshire, is 10.1h.

What is the month with the highest UV index in Hanover?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Hanover.

What is the UV index reading in August in Hanover?

In August, the average daily maximum UV index in Hanover, New Hampshire, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in August - Hanover, NH
  • Average high temperature in August: 24.6°C

The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-3.9°C).

  • Average low temperature in August: 12.7°C

The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is January (-10.8°C).

Average pressure in August - Hanover, NH
  • Average pressure in August: 1014.8mbar

The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

Average wind speed in August - Hanover, NH
  • Average wind speed in August: 7.8km/h

The windiest month (with the highest average wind speed) is April (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).

Average humidity in August - Hanover, NH
  • Average humidity in August: 79%

Months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).

Average rainfall in August - Hanover, NH
  • Average rainfall in August: 55mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the least rainfall) is September (47mm).

Average rainfall days in August - Hanover, NH
  • Average rainfall days in August: 15.9 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in August - Hanover, NH
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (294mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August - Hanover, NH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (16.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Hanover, NH
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in August: 10.1h

The month with the most sunshine is August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 3.6h).

Average sunshine days in August - Hanover, NH
  • Average sunshine days in August: 12.4 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in August - Hanover, NH
  • Average UV index in August: 5

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are February and December (UV index 1).

Average cloud cover in August - Hanover, NH
  • Average cloud cover in August: 37

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in August - Hanover, NH
  • Average visibility in August: 8km

Months with the highest visibility are April, May, June, July, August, October, November and December (8km).
Months with the lowest visibility are January, February, March and September (7km).