August weather forecastJoplin, MT
August
Weather in August
August, the last month of the summer in Joplin, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 60.4°F (15.8°C).Temperature
With the transition into August, Joplin notes an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely resembling July. In the month of August, the average low-temperature usually rests at a refreshing 60.4°F (15.8°C).Humidity
The least humid month is August, with an average relative humidity of 39%.Rainfall
In Joplin, during August, the rain falls for 9.3 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 113.8 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
June through August are months without snowfall.Daylight
In Joplin, Montana, the average length of the day in August is 14h and 17min.On the first day of the month, sunrise is at 5:58 am and sunset at 9:00 pm. On the last day of August, sunrise is at 6:40 am and sunset at 8:06 pm MDT.
Sunshine
The average sunshine in August is 11.5h.UV index
In Joplin, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: During August, 5 as the daily maximum UV index converts into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Joplin, MT
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).
Average pressure in August
Joplin, MT
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Joplin, MT
- Average wind speed in August: 8.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in August
Joplin, MT
- Average humidity in August: 39%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).
Average rainfall in August
Joplin, MT
- Average rainfall in August: 0.79"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in August
Joplin, MT
- Average rainfall days in August: 9.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5 days).
Average snowfall in August
Joplin, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Joplin, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Joplin, 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 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in August
Joplin, MT
- Average sunshine days in August: 18.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in August
Joplin, 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
Joplin, MT
- Average cloud cover in August: 16
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in August
Joplin, 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).





