Weather in Boulder in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 69.7°F | 75.7°F | 74.6°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 51.8°F | 57.5°F | 56.8°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 14 days | 12 days | 14 days | |||
| Day length: | ||||||
| Day length: | 14.8 - 15.0 h. | 14.3 - 15.0 h. | 13.1 - 14.2 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 6 days | 4 days | 2 days | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 2.4 in. | 1.8 in. | 1.5 in. | |||
Day & Night air temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Boulder
Boulder on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boulder
Local time: 16:43
March 18, wednesday
1800
72°F
SE
15 mph
15 mph
2100
61°F
E
10 mph
10 mph
March 19, thursday
0000
57°F
E
11 mph
11 mph
0300
55°F
E
12 mph
12 mph
0600
54°F
E
11 mph
11 mph
0900
61°F
E
8 mph
8 mph
1200
75°F
E
9 mph
9 mph
1500
79°F
E
19 mph
19 mph
