August weather forecast
Durham, NH

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Weather in August

As August commences, weather conditions continue to stay characteristic of summer but are noticeably less intense than those in July. While temperatures are still high, there is a slight decrease compared to the previous month. The extended daylight hours ensure that Durhamites can still enjoy their outdoor activities. August generally ends the peak summer phase but continues to maintain the warm and vibrant character of the season. As August closes, residents can start looking forward to the gradual transition to milder climates.

Temperature

August's arrival shows an average high-temperature of a still moderately hot 76.8°F (24.9°C), hardly different from the previous month. Durham experiences a steady low-temperature of 61.3°F (16.3°C) throughout August.

Humidity

In August, the average relative humidity in Durham is 78%.

Rainfall

In Durham, in August, it is raining for 13.1 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, in Durham, there are 144.8 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Durham, New Hampshire, the average length of the day in August is 13h and 54min.
On the first day of the month, sunrise is at 5:35 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:07 am and sunset at 7:19 pm EDT.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the average August temperature in Durham?

An average high-temperature, in August, in Durham, is 76.8°F (24.9°C) and the average low-temperature is 61.3°F (16.3°C).

What is the average humidity in August in Durham?

In August, the average relative humidity in Durham is 78%.

How many days does it rain in August in Durham?

In Durham, in August, during 13.1 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Durham?

In Durham, New Hampshire, snow does not fall in May through September.

How many hours of daylight does Durham have in August?

The average day length in August in Durham is 13h and 54min.

When are sunrise and sunset in August in Durham?

On the first day of August in Durham, sunrise is at 5:35 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 7:19 pm EDT.

What month has the most sunshine in Durham?

August has the most sunshine of the year in Durham, New Hampshire, with an average of 10.6h of sunshine.

How long on average sun shines in August in Durham?

In Durham, the average sunshine duration in August is 10.6h.

When is the highest UV index in Durham?

July and August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August in Durham?

In August, the average daily maximum UV index in Durham is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Durham, NH

Average temperature in August - Durham, NH
  • Average high temperature in August: 76.8°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in August
Durham, NH

Average pressure in August - Durham, NH
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Durham, NH

Average wind speed in August - Durham, NH
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in August
Durham, NH

Average humidity in August - Durham, NH
  • Average humidity in August: 78%

The months with the highest relative humidity are January and February (80%).
The months with the lowest relative humidity are April and November (75%).

Average rainfall in August
Durham, NH

Average rainfall in August - Durham, NH
  • Average rainfall in August: 1.97"

The wettest months (with the highest rainfall) are October and December (2.87").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in August
Durham, NH

Average rainfall days in August - Durham, NH
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.6 days).

Average snowfall in August
Durham, NH

Average snowfall in August - Durham, NH
  • Average snowfall in August: 0"

The month with the highest snowfall is December (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Durham, NH

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Durham, NH

Average daylight in August / Average sunshine in August - Durham, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in August
Durham, NH

Average sunshine days in August - Durham, NH
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in August
Durham, NH

Average UV index in August - Durham, NH
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August
Durham, NH

Average cloud cover in August - Durham, NH
  • Average cloud cover in August: 30

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Durham, NH

Average visibility in August - Durham, NH
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Durham, New Hampshire, USA

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