August weather forecast and climate
Grafton, ND

The last month of the summer, August, is another warm month in Grafton, North Dakota, with average temperature fluctuating between 80.4°F (26.9°C) and 59°F (15°C).

Temperature

The warmest month is August, with an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 59°F (15°C).

Humidity

August is the least humid month, with an average relative humidity of 59%.

Rainfall

In Grafton, during 9.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Grafton, during the entire year, the rain falls for 97.8 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

In Grafton snow does not fall in June through September.

Daylight

In Grafton, North Dakota, the average length of the day is 14.3h.

Sunshine

In Grafton, the average sunshine in August is 10.6h.

UV index

In August, the average daily maximum UV index in Grafton is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 warmest month in Grafton?

August is the warmest month in Grafton, North Dakota, with an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 59°F (15°C).

What is the temperature in August in Grafton?

In Grafton, in August, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 59°F (15°C).

What is the least humid month in Grafton?

The least humid month in Grafton, North Dakota, is August, with an average relative humidity of 59%.

What is the average humidity in August in Grafton?

In Grafton, North Dakota, the average relative humidity in August is 59%.

How much does it rain in Grafton in August?

In Grafton, North Dakota, in August, during 9.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Grafton?

In Grafton, North Dakota, snow does not fall in June through September.

What is the average length of the day in August in Grafton?

In August, the average length of the day in Grafton, North Dakota, is 14.3h.

How many hours of sunshine does Grafton have in August?

In Grafton, the average sunshine in August is 10.6h.

What is the UV index reading in August in Grafton?

In Grafton, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in August - Grafton, ND
  • Average high temperature in August: 26.9°C

The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (-9.6°C).

  • Average low temperature in August: 15°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-17.3°C).

Average pressure in August - Grafton, ND
  • Average pressure in August: 1012.5mbar

The month with the highest atmospheric pressure is February (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.9mbar).

Average wind speed in August - Grafton, ND
  • Average wind speed in August: 13.1km/h

The windiest month (with the highest average wind speed) is October (17km/h).
The calmest months (with the lowest average wind speed) are July and August (13.1km/h).

Average humidity in August - Grafton, ND
  • Average humidity in August: 59%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).

Average rainfall in August - Grafton, ND
  • Average rainfall in August: 30mm

The wettest month (with the highest rainfall) is June (71mm).
The driest months (with the least rainfall) are January and February (14mm).

Average rainfall days in August - Grafton, ND
  • Average rainfall days in August: 9.2 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in August - Grafton, ND
  • Average snowfall in August: 0mm

The month with the highest snowfall is December (100mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August - Grafton, ND
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Grafton, ND
  • Average daylight in August: 14.3h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in August: 10.6h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 3.2h).

Average sunshine days in August - Grafton, ND
  • Average sunshine days in August: 19.8 days

The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in August - Grafton, ND
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in August - Grafton, ND
  • Average cloud cover in August: 24

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in August - Grafton, ND
  • Average visibility in August: 10km

Months with the highest visibility are May, July, August and September (10km).
Months with the lowest visibility are January, February, March and December (8km).