August weather forecastBoone, CO
August
Weather in August
The last month of the summer, August, is also a hot month in Boone, Colorado, with an average temperature ranging between max 87.4°F (30.8°C) and min 64.9°F (18.3°C).Temperature
The shift into August reveals an average high-temperature of a still tropical 87.4°F (30.8°C), closely mirroring July's climate. From significant daily highs, Boone's nights in August cool down to an average low-temperature of 64.9°F (18.3°C).Heat index
The heat index value during August is computed to be a tropical 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In August, the average relative humidity is 41%.Rainfall
In Boone, in August, during 11.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Boone, during the entire year, the rain falls for 83.6 days and collects up to 9.29" (236mm) of precipitation.Snowfall
In Boone, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 36min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:27 pm MDT.
Sunshine
In Boone, the average sunshine in August is 11.7h.UV index
The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during August translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Boone, CO
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is December (24.4°F).
Average pressure in August
Boone, CO
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is April (29.88"Hg).
Average wind speed in August
Boone, CO
- Average wind speed in August: 7.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is December (7.1mph).
Average humidity in August
Boone, CO
- Average humidity in August: 41%
The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is June (36%).
Average rainfall in August
Boone, CO
- Average rainfall in August: 1.22"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is December (0.28").
Average rainfall days in August
Boone, CO
- Average rainfall days in August: 11.3 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (2.3 days).
Average snowfall in August
Boone, CO
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Boone, CO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Boone, CO
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in August
Boone, CO
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is December (25.1 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in August
Boone, CO
- Average UV index in August: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Boone, CO
- Average cloud cover in August: 16
The month with the most cloud cover is February (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in August
Boone, CO
- 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).





