July weather forecast
Rolla, ND

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Weather in July

July symbolizes the heart of summer in Rolla, North Dakota, with the highest temperatures of the year. The temperature highs can go as far as 77.4°F (25.2°C) and as low as 57.2°F (14°C), marking the hottest period of the year. Breathe in the summer’s spirit as you experience more sun, with the most extended daylight hours. Paired with the warmth comes the predominantly clear skies and longer sunshine duration. It's undeniable that July's balmy weather includes a blend of warmth, sunlight, and mild humidity.

Temperature

July in Rolla brings a slight increase in the average high-temperature, progressing from an agreeable 70.7°F (21.5°C) in June to a warm 77.4°F (25.2°C). July brings an average low-temperature of 57.2°F (14°C) to Rolla.

Humidity

The average relative humidity in July is 69%.

Rainfall

In Rolla, North Dakota, in July, it is raining for 15.3 days, with typically 2.52" (64mm) of accumulated precipitation. In Rolla, during the entire year, the rain falls for 110.9 days and collects up to 17.95" (456mm) of precipitation.

Snowfall

In Rolla, snow does not fall in June through September.

Daylight

The average length of the day in July in Rolla is 15h and 41min.
On the first day of the month, sunrise is at 5:39 am and sunset at 9:45 pm. On the last day of July, sunrise is at 6:11 am and sunset at 9:17 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 11h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 5 in July translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average July temperature?

In Rolla, 77.4°F (25.2°C) is the average high-temperature and 57.2°F (14°C) is the average low-temperature during July.

What is the average humidity in July?

The average relative humidity in July is 69%.

How many days does it rain in July?

In Rolla, in July, during 15.3 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July in Rolla?

The average day length in July is 15h and 41min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:39 am and sunset at 9:45 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 9:17 pm CDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11h of sunshine.

How long on average sun shines in July?

In Rolla, the average sunshine duration in July is 11h.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 5.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Rolla, ND

Average temperature in July - Rolla, ND
  • Average high temperature in July: 77.4°F

The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (14.2°F).

  • Average low temperature in July: 57.2°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).

Average pressure in July
Rolla, ND

Average pressure in July - Rolla, ND
  • Average pressure in July: 29.9"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in July
Rolla, ND

Average wind speed in July - Rolla, ND
  • Average wind speed in July: 8.6mph

The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in July
Rolla, ND

Average humidity in July - Rolla, ND
  • Average humidity in July: 69%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).

Average rainfall in July
Rolla, ND

Average rainfall in July - Rolla, ND
  • Average rainfall in July: 2.52"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (0.43").

Average rainfall days in July
Rolla, ND

Average rainfall days in July - Rolla, ND
  • Average rainfall days in July: 15.3 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2 days).

Average snowfall in July
Rolla, ND

Average snowfall in July - Rolla, ND
  • Average snowfall in July: 0"

The month with the highest snowfall is November (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Rolla, ND

Average snowfall days in July - Rolla, ND
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Rolla, ND

Average daylight in July / Average sunshine in July - Rolla, ND
  • Average daylight in July: 15h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in July
Rolla, ND

Average sunshine days in July - Rolla, ND
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is June (8.1 days).

Average UV index in July
Rolla, ND

Average UV index in July - Rolla, ND
  • Average UV index in July: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in July
Rolla, ND

Average cloud cover in July - Rolla, ND
  • Average cloud cover in July: 27

The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in July
Rolla, ND

Average visibility in July - Rolla, ND
  • Average visibility in July: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Rolla, North Dakota, USA

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