July weather forecast
Durham, NH

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Weather in July

July showcases typical summer weather for Durham, representing the height of the warm season. With temperatures reaching the peak at 77.4°F (25.2°C) to 61.5°F (16.4°C) and keeping the mercury high, July is indeed the hottest month. With these high temperatures, locals are sure to enjoy Durham’s summer offerings. Be it outdoor activities or enjoying local produce, July is a time of abundance in Durham. As total daylight hours and sunshine peak, the city brims with vibrant summer life.

Temperature

Temperature readings in Durham, New Hampshire, reach their annual highs in July, averaging 77.4°F (25.2°C) and a minimum average of 61.5°F (16.4°C).

Humidity

In Durham, the average relative humidity in July is 79%.

Rainfall

In July, in Durham, the rain falls for 14.3 days. Throughout July, 2.05" (52mm) of precipitation is accumulated. 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

The average length of the day in July in Durham, New Hampshire, is 15h and 0min.
On the first day of July, sunrise is at 5:08 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:06 pm EDT.

Sunshine

In July, the average sunshine is 10.2h.

UV index

The months with the highest UV index in Durham are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are the warmest months in Durham?

Durham, New Hampshire, experiences its highest temperatures in July, with an average peak of 77.4°F (25.2°C) and a low of 61.5°F (16.4°C).

What is the average July temperature in Durham?

During July, Durham experiences an average high-temperature of 77.4°F (25.2°C) and a low-temperature of 61.5°F (16.4°C).

What is the average humidity in July in Durham?

In July, the average relative humidity in Durham is 79%.

How much does it rain in Durham in July?

In Durham, in July, during 14.3 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow in Durham?

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

How many hours of daylight does Durham have in July?

In July, the average day length is 15h and 0min.

What time are sunrise and sunset in July in Durham?

On the first day of July in Durham, New Hampshire, sunrise is at 5:08 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:06 pm EDT.

How long on average sun shines in July in Durham?

The average sunshine duration in July in Durham is 10.2h.

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

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

How high is the UV index in July in Durham?

The average daily maximum UV index in July in Durham is 6. A UV Index reading of 6 to 7 represents a high health risk 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 July
Durham, NH

Average temperature in July - Durham, NH
  • Average high temperature in July: 77.4°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 July: 61.5°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 July
Durham, NH

Average pressure in July - Durham, NH
  • Average pressure in July: 29.94"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 July
Durham, NH

Average wind speed in July - Durham, NH
  • Average wind speed in July: 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 July
Durham, NH

Average humidity in July - Durham, NH
  • Average humidity in July: 79%

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 July
Durham, NH

Average rainfall in July - Durham, NH
  • Average rainfall in July: 2.05"

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 July
Durham, NH

Average rainfall days in July - Durham, NH
  • Average rainfall days in July: 14.3 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 July
Durham, NH

Average snowfall in July - Durham, NH
  • Average snowfall in July: 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 July
Durham, NH

Average snowfall days in July - Durham, NH
  • Average snowfall days in July: 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 July /
Average sunshine in July
Durham, NH

Average daylight in July / Average sunshine in July - Durham, NH
  • Average daylight in July: 15h and 0min

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 July: 10h and 1min

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 July
Durham, NH

Average sunshine days in July - Durham, NH
  • Average sunshine days in July: 14.6 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 July
Durham, NH

Average UV index in July - Durham, NH
  • Average UV index in July: 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 July
Durham, NH

Average cloud cover in July - Durham, NH
  • Average cloud cover in July: 33

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 July
Durham, NH

Average visibility in July - Durham, NH
  • Average visibility in July: 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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