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

The average temperatures reach their apex in July, averaging 77.4°F (25.2°C) at the high end and 61.5°F (16.4°C) at the low end.

Humidity

The average relative humidity in July in Durham 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

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

Daylight

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

Sunshine

In Durham, the average sunshine in July is 10.2h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in July translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

The highest temperatures in Durham are recorded in July, with averages reaching a high of 77.4°F (25.2°C) and a low of 61.5°F (16.4°C).

What is the average July temperature?

The high-temperature during July is 77.4°F (25.2°C) and the low-temperature is 61.5°F (16.4°C).

What is the average humidity in July?

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

How many days does it rain in July?

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

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in July?

The average day length in July is 15h and 0min.

What time are sunrise and sunset in July in Durham?

In July, on the first day of the month, 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?

The average sunshine duration in July is 10.2h.

What is the month with the highest UV index?

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

How high is the UV index in July?

In Durham, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents 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 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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