August weather forecastGrant, CO
August
Weather in August
August, the last month of the summer in Grant, is another pleasant month, with an average temperature fluctuating between 68.7°F (20.4°C) and 42.4°F (5.8°C).Temperature
The onset of August notes an average high-temperature of a still pleasant 68.7°F (20.4°C), subtly shifted from July's 70°F (21.1°C). A considerable shift from the daytime highs is observed during August nights, with an average low of 42.4°F (5.8°C).Humidity
In Grant, the average relative humidity in August is 55%.Rainfall
In Grant, during August, the rain falls for 20.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 138.3 rainfall days, and 23.07" (586mm) of precipitation is accumulated.Snowfall
Months with snowfall in Grant are January through December. In Grant, in August, snow falls for 0.5 days, with typically accumulated 0.16" (4mm) of snow. In Grant, during the entire year, snow falls for 127.6 days and aggregates up to 93.94" (2386mm) of snow.Daylight
In Grant, the average length of the day in August is 13h and 40min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:34 pm MDT.
Sunshine
With an average of 11.6h of sunshine, August has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In August, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grant, CO
- Average high temperature in August: 68.7°F
The warmest month (with the highest average high temperature) is July (70°F).
The month with the lowest average high temperature is December (26.8°F).
- Average low temperature in August: 42.4°F
The month with the highest average low temperature is July (44.2°F).
The coldest months (with the lowest average low temperature) are January and December (8.1°F).
Average pressure in August
Grant, CO
- Average pressure in August: 30.04"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and May (29.93"Hg).
Average wind speed in August
Grant, CO
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in August
Grant, CO
- Average humidity in August: 55%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (51%).
Average rainfall in August
Grant, CO
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in August
Grant, CO
- Average rainfall days in August: 20.5 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in August
Grant, CO
- Average snowfall in August: 0.16"
The month with the highest snowfall is May (17.48").
The month with the least snowfall is July (0.12").
Average snowfall days in August
Grant, CO
- Average snowfall days in August: 0.5 days
The month with the highest number of snowfall days is April (18.5 days).
The months with the least snowfall days are July and August (0.5 days).
Average daylight in August /
Average sunshine in August
Grant, CO
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in August
Grant, CO
- Average sunshine days in August: 6.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (4.1 days).
Average UV index in August
Grant, CO
- Average UV index in August: 4
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Grant, CO
- Average cloud cover in August: 21
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are June and September (Cloud cover 18).
Average visibility in August
Grant, CO
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





