World Resorts USA Boulder Weather

Boulder weather in August

Weather in Boulder: August

Average day temperature: 73.1°F
Average night temperature: 55.9°F
Number of sunny days: 13 days
Day length: 13.1 - 14.2 hours
Number of rainy days: 2 days
Precipitation totals: 1.6 in.

Air temperature in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
15
30
45
60
75
90
105
Day temperature   
Night temperature

The highest day temperature during August of 2024 was 87°F. At the same time the lowest night temperature was 56°F. Day and night temperature averages during August were 78.5°F and 63.9°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
43%
50%
7%

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.4
0.8
1.3
1.7
2.1
2.5
2.9
3.4
2.2
2.5
2.4
1.6
1.5
1.6
2.2
2.5
2.4
1.6
1.5

Precipitation total value in Boulder in August is 1.6 in. Other months of the year show relatively similar values.

Wind speed in August, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.0
4.5
6.1
7.6
9.1
10.6
8.7
8.2
7.2
6.6
6.4
7.0
6.7
8.0
7.2
8.8
8.3
8.7
8.2
7.2
6.6
6.3
6.4
7.0
6.7
8.0
7.2
8.8
8.3

The average wind speed value in August is 6.3 mph It makes August lest windy month of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.3
5.0
6.6
8.3
9.9
11.6
6.5
7.1
8.5
9.5
9.5
9.6
8.1
7.9
7.0
6.8
6.2
6.5
7.1
8.5
9.5
9.0
9.5
9.6
8.1
7.9
7.0
6.8
6.2

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 9.0.

Best time for vacation in Boulder

Sunniest months:
September 21 days
October 21 days
November 19 days
Warmest months:
July 74.0 °F
August 73.1 °F
September 68.7 °F
Coldest months:
January 30.0 °F
February 30.0 °F
March 37.0 °F
Rainiest months:
June 6 days
July 5 days
May 4 days
Windiest months:
February 8.8 mph
December 8.7 mph
January 8.3 mph

Boulder on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+21°F
+32°F
+72°F
+72°F
+41°F
+46°F
+73°F
+28°F
+70°F
+52°F
+45°F
+68°F
+70°F
+70°F
+28°F
24 Hours Forecast
Boulder
Local time: 08:23
February 15, saturday
0900
25°F
SW
3 mph
1200
36°F
SW
6 mph
1500
34°F
SW
7 mph
1800
28°F
SW
7 mph
2100
19°F
W
4 mph
February 16, sunday
0000
16°F
S
1 mph
0300
14°F
SE
3 mph
0600
14°F
E
2 mph
Units of measurement: °C / °F