July weather forecast
Jamestown, ND

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Weather in July

July in Jamestown is identified by locals as the heart of summer. The temperatures are at their highest, luring many to the city's various water bodies for a refreshing dip. The city is buzzing with summer festivities under the consistent sunshine, boasting of the highest UV index of the year at 6. The weather is characterized by plentiful sunshine and minimal rain showers, ideal for outings. However, a keen eye should be kept on the sky for occasional thunderstorms.

Temperature

In Jamestown, the highest average temperatures are observed in July, with a high of 81.3°F (27.4°C) and a low of 60.4°F (15.8°C).

Heat index

July's average heat index is evaluated at 84.2°F (29°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Consider that heat index readings are for situations in the shade and light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In July, the average relative humidity is 66%.

Rainfall

In Jamestown, in July, it is raining for 12.4 days, with typically 1.97" (50mm) of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 96.6 days and collects up to 16.77" (426mm) of precipitation.

Snowfall

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

Daylight

In July, the average length of the day in Jamestown is 15h and 26min.
On the first day of the month, sunrise is at 5:44 am and sunset at 9:33 pm. On the last day of July, in Jamestown, sunrise is at 6:14 am and sunset at 9:08 pm CDT.

Sunshine

With an average of 11h of sunshine, July has the most sunshine of the year in Jamestown, North Dakota.

UV index

June and July, 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 unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Jamestown?

In Jamestown, the peak temperatures are generally noted in July, averaging a high of 81.3°F (27.4°C) and a low of 60.4°F (15.8°C).

What is the usual temperature for Jamestown in July?

In July, the average high-temperature and low-temperature are 81.3°F (27.4°C) and 60.4°F (15.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 84.2°F (29°C).

What is the average humidity in July in Jamestown?

In July, the average relative humidity is 66%.

How much does it rain in Jamestown in July?

In Jamestown, in July, it is raining for 12.4 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow in Jamestown?

June through September are months without snowfall.

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

In Jamestown, North Dakota, the average day length in July is 15h and 26min.

When is the sunrise / sunset in July in Jamestown?

On the first day of July, sunrise is at 5:44 am and sunset at 9:33 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 9:08 pm CDT.

What month has the most sunshine in Jamestown?

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

How long on average sun shines in July in Jamestown?

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

What are the months with the highest UV index in Jamestown?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Jamestown, North Dakota.

What is the UV index intensity in July in Jamestown?

In July, the average daily maximum UV index in Jamestown, North Dakota, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Jamestown, ND

Average temperature in July - Jamestown, ND
  • Average high temperature in July: 81.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (17.8°F).

  • Average low temperature in July: 60.4°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (3.6°F).

Average pressure in July
Jamestown, ND

Average pressure in July - Jamestown, ND
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in July
Jamestown, ND

Average wind speed in July - Jamestown, ND
  • Average wind speed in July: 8.7mph

The windiest month (with the highest average wind speed) is October (11.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in July
Jamestown, ND

Average humidity in July - Jamestown, ND
  • Average humidity in July: 66%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (59%).

Average rainfall in July
Jamestown, ND

Average rainfall in July - Jamestown, ND
  • Average rainfall in July: 1.97"

The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in July
Jamestown, ND

Average rainfall days in July - Jamestown, ND
  • Average rainfall days in July: 12.4 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in July
Jamestown, ND

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

The month with the highest snowfall is December (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Jamestown, ND

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

The month with the highest number of snowfall days is December (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Jamestown, ND
  • Average daylight in July: 15h and 2min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • 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 36min).

Average sunshine days in July
Jamestown, ND

Average sunshine days in July - Jamestown, ND
  • Average sunshine days in July: 15.3 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (12 days).

Average UV index in July
Jamestown, ND

Average UV index in July - Jamestown, ND
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in July
Jamestown, ND

Average cloud cover in July - Jamestown, ND
  • Average cloud cover in July: 24

The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 24).

Average visibility in July
Jamestown, ND

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

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

Jamestown, North Dakota, USA

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