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
The unfolding of August shows an average high-temperature of a still warm 76.6°F (24.8°C), indicating a slight variance from July's 78.4°F (25.8°C). Boulder anticipates a stark contrast in temperature during August nights, with an average low of 53.8°F (12.1°C).Humidity
With an average relative humidity of 34%, August is the least humid month in Boulder.Rainfall
The month with the least rainfall is August, when the rain falls for 7.1 days and typically collects 0.51" (13mm) of precipitation.Snowfall
July and August are months without snowfall.Daylight
In August, the average length of the day in Boulder is 13h and 52min.On the first day of August in Boulder, sunrise is at 6:11 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:54 pm MDT.
Sunshine
July and August, with an average of 11.9h of sunshine, are months with the most sunshine in Boulder.UV index
In Boulder, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in Boulder?
What is the least humid month in Boulder?
What is the average humidity in August in Boulder?
What is the driest month 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?
When are sunrise and sunset in August in Boulder?
What is the month with the most sunshine in Boulder?
How many hours of sunshine does Boulder have in August?
What is the UV index reading in August in Boulder?
Average temperature in August
Boulder, WY
- Average high temperature in August: 76.6°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in August: 53.8°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in August
Boulder, WY
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Boulder, WY
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in August
Boulder, WY
- Average humidity in August: 34%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (34%).
Average rainfall in August
Boulder, WY
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in August
Boulder, WY
- Average rainfall days in August: 7.1 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in August
Boulder, WY
- Average snowfall in August: 0"
The month with the highest snowfall is February (7.32").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Boulder, WY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (15.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Boulder, WY
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 11h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in August
Boulder, WY
- Average sunshine days in August: 18.7 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in August
Boulder, WY
- 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, April, October, November and December (UV index 2).
Average cloud cover in August
Boulder, WY
- Average cloud cover in August: 11
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in August
Boulder, WY
- 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 and February (4mi).
Boulder, Wyoming, USA
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