Jamestown
North Dakota, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Jamestown, ND

August, the last month of the summer, in Jamestown, is also a moderately hot month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 56.1°F (13.4°C).

Temperature

In Jamestown, the average high-temperature is relatively the same as in July - a still warm 81.9°F (27.7°C). In August, in Jamestown, the average low-temperature is 56.1°F (13.4°C).

Rainfall

In Jamestown, during 9 rainfall days, 2.1" (53.3mm) of precipitation is typically accumulated. In Jamestown, North Dakota, during the entire year, the rain falls for 94 days and collects up to 19.6" (498.5mm) of precipitation.

Snowfall

In Jamestown, North Dakota, during the entire year, snow aggregates up to 39.8" (1010.9mm).

Daylight

In August, the average length of the day in Jamestown is 14.2h.

Sunshine

In August, the average sunshine is 10h.

UV index

In August, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 7 in August transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Jamestown?

The average high-temperature, in August, in Jamestown, North Dakota, is 81.9°F (27.7°C), while the average low-temperature is 56.1°F (13.4°C).

How much does it rain in Jamestown in August?

In August, in Jamestown, North Dakota, the rain falls for 9 days. Throughout August, 2.1" (53.3mm) of precipitation is accumulated.

How many hours of daylight does Jamestown have in August?

In August, the average length of the day is 14.2h.

How long on average sun shines in August in Jamestown?

The average sunshine in August in Jamestown is 10h.

How high is the UV index in August in Jamestown?

The average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in August - Jamestown, ND
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in August: 56.2°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).

Average rainfall in August - Jamestown, ND
  • Average rainfall in August: 2.1"

The wettest month (with the highest rainfall) is June (3.5").
Driest months (with the lowest rainfall) are February and December (0.4").

Average rainfall days in August - Jamestown, ND
  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is June (11 days).
Months with the lowest number of rainy days are October and November (6 days).

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

The month with the highest snowfall is January (9.7").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in August / Average sunshine in August - Jamestown, ND
  • Average daylight in August: 14.2h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in August: 10h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in August - Jamestown, ND
  • Average UV index in August: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).