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
In Boulder, Montana, the average high-temperature in August is essentially the same as in July - a still warm 77.5°F (25.3°C). In August, the average low-temperature is 48.6°F (9.2°C).Humidity
The least humid month in Boulder is August, with an average relative humidity of 46%.Rainfall
In Boulder, in August, it is raining for 9.8 days, with typically 0.91" (23mm) of accumulated precipitation. In Boulder, during the entire year, the rain falls for 133.7 days and collects up to 16.38" (416mm) of precipitation.Snowfall
In Boulder, snow does not fall in July and August.Daylight
The average length of the day in August in Boulder, Montana, is 14h and 6min.On the first day of August, sunrise is at 6:10 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:09 pm MDT.
Sunshine
The average sunshine in August in Boulder is 11.5h.UV index
In Boulder, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 4 in August interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in August in Boulder?
What is the least humid month in Boulder?
What is the average humidity in August in Boulder?
How much does it rain in Boulder in August?
When it does not snow in Boulder?
Does it snow in Boulder in August?
How many hours of daylight does Boulder have in August?
What time are sunrise and sunset in August in Boulder?
How long on average sun shines in August in Boulder?
How high is the UV index in August in Boulder?
Average temperature in August
Boulder, MT
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in August: 48.6°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in August
Boulder, MT
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Boulder, MT
- Average wind speed in August: 4.7mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in August
Boulder, MT
- Average humidity in August: 46%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in August
Boulder, MT
- Average rainfall in August: 0.91"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in August
Boulder, MT
- Average rainfall days in August: 9.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in August
Boulder, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Boulder, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Boulder, MT
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 43min).
The month with the shortest days is December (Average daylight: 8h and 41min).
- Average sunshine in August: 11h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in August
Boulder, MT
- Average sunshine days in August: 17 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in August
Boulder, MT
- Average UV index in August: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in August
Boulder, MT
- Average cloud cover in August: 15
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in August
Boulder, MT
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Weather forecast for your location
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