Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Jamestown, North Dakota, observes a minor difference in average high-temperatures between July's 81.3°F (27.4°C) and August's 81°F (27.2°C). Jamestown experiences a significant contrast between daily highs and an average nighttime temperature of 59.2°F (15.1°C) during August.Heat index
The heat index value for August is evaluated at 82.4°F (28°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
With an average relative humidity of 59%, August is the least humid month in Jamestown.Rainfall
In Jamestown, in August, during 11.2 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. 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, North Dakota, snow does not fall in June through September.Daylight
The average length of the day in August is 14h and 10min.On the first day of the month, sunrise is at 6:15 am and sunset at 9:06 pm. On the last day of August, in Jamestown, sunrise is at 6:54 am and sunset at 8:15 pm CDT.
Sunshine
In Jamestown, the average sunshine in August is 10.8h.UV index
In Jamestown, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In August, the UV index of 5 transforms into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jamestown in August?
What is the least humid month in Jamestown?
What is the average humidity in August in Jamestown?
How much does it rain in Jamestown in August?
When it does not snow in Jamestown?
What is the average length of the day in August in Jamestown?
When is the sunrise / sunset in August in Jamestown?
How many hours of sunshine does Jamestown have in August?
What is the UV index intensity in August in Jamestown?
Average temperature in August
Jamestown, ND
- Average high temperature in August: 81°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 August: 59.2°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 August
Jamestown, ND
- Average pressure in August: 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 August
Jamestown, ND
- Average wind speed in August: 8.5mph
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 August
Jamestown, ND
- Average humidity in August: 59%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (59%).
Average rainfall in August
Jamestown, ND
- Average rainfall in August: 1.34"
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 August
Jamestown, ND
- Average rainfall days in August: 11.2 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 August
Jamestown, ND
- Average snowfall in August: 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 August
Jamestown, ND
- Average snowfall days in August: 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 August /
Average sunshine in August
Jamestown, ND
- Average daylight in August: 14h and 1min
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 August: 10h and 5min
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 August
Jamestown, ND
- Average sunshine days in August: 17.3 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 August
Jamestown, ND
- Average UV index in August: 5
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 August
Jamestown, ND
- Average cloud cover in August: 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 August
Jamestown, ND
- Average visibility in August: 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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