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
Chester's August reports an average high-temperature of a still moderately hot 81.1°F (27.3°C), exhibiting a minor difference from July. During the month of August, Chester's nighttime temperature lowers to an average of 60.4°F (15.8°C).Humidity
The least humid month in Chester is August, with an average relative humidity of 39%.Rainfall
In August, in Chester, Montana, the rain falls for 9.3 days. Throughout August, 0.79" (20mm) of precipitation is accumulated. 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
The average length of the day in August is 14h and 17min.On the first day of the month, sunrise is at 5:59 am and sunset at 9:00 pm. On the last day of August, in Chester, 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 August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 5 suggests these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature in Chester?
What is the least humid month in Chester?
What is the average humidity in August in Chester?
How many days does it rain in August in Chester?
When it does not snow in Chester?
Does it snow in Chester in August?
What is the average length of the day in August in Chester?
What time are sunrise and sunset in August in Chester?
How long on average sun shines in August in Chester?
What is the UV index intensity in August in Chester?
Average temperature in August
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, MT
- Average daylight in August: 14h and 2min
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 3min
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
Chester, 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
Chester, 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
Chester, 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
Chester, 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).
Chester, Montana, USA
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