August weather forecastDunkirk, MT
August
Weather in August
August, the last month of the summer in Dunkirk, is also a moderately hot month, with an average temperature fluctuating between 58.3°F (14.6°C) and 79.9°F (26.6°C).Temperature
The arrival of August is marked by an average high-temperature of a still moderately hot 79.9°F (26.6°C), bearing a close resemblance to July. Throughout August, Dunkirk notes a dramatic plunge from the daily high to an average low-temperature of 58.3°F (14.6°C).Humidity
August is the least humid month, with an average relative humidity of 40%.Rainfall
In August, the rain falls for 6.9 days. Throughout August, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 84.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
June through August are months without snowfall.Daylight
In Dunkirk, the average length of the day in August is 14h and 16min.On the first day of the month, sunrise is at 6:02 am and sunset at 9:03 pm. On the last day of August, sunrise is at 6:43 am and sunset at 8:09 pm MDT.
Sunshine
In August, the average sunshine is 11.3h.UV index
In August, the average daily maximum UV index in Dunkirk is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Dunkirk, MT
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in August: 58.3°F
The month with the highest average low temperature is August (58.3°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).
Average pressure in August
Dunkirk, MT
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Dunkirk, MT
- Average wind speed in August: 8.7mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in August
Dunkirk, MT
- Average humidity in August: 40%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (40%).
Average rainfall in August
Dunkirk, MT
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.39").
Average rainfall days in August
Dunkirk, MT
- Average rainfall days in August: 6.9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in August
Dunkirk, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Dunkirk, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Dunkirk, MT
- Average daylight in August: 14h and 18min
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 24min).
- Average sunshine in August: 11h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
Dunkirk, MT
- Average sunshine days in August: 22 days
The month with the most sunshine days is September (22.2 days).
The month with the least sunshine days is April (14.7 days).
Average UV index in August
Dunkirk, MT
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
Dunkirk, MT
- Average cloud cover in August: 17
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in August
Dunkirk, MT
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





