Please click on any column to get detailed information about Boulder weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
The warmest month in Boulder is july. The average daily temp is 72.6°F. The average nightly temp is 54.4°F.
Precipitation total, in.
Number of rainy days
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
Sunny, partly cloudy and cloudy days
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.
* Charts above show average data for the last 3 years.
Best time for vacation in Boulder
Boulder on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boulder
Local time: 17:59
May 18, saturday
1800
63°F
N
1 mph
1 mph
2100
55°F
E
6 mph
6 mph
May 19, sunday
0000
55°F
NE
6 mph
6 mph
0300
54°F
E
7 mph
7 mph
0600
54°F
E
8 mph
8 mph
0900
66°F
NE
2 mph
2 mph
1200
70°F
E
13 mph
13 mph
1500
72°F
E
17 mph
17 mph
