Weather in Boulder: July
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Average day temperature: | 75.7°F |
| Average night temperature: | 57.5°F | |
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Number of sunny days: | 12 days |
| Day length: | 14.3 - 15.0 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 1.8 in. | |
| more information | ||
14 days
forecast
forecast
| Boulder |
weather in
August
August
| Boulder |
Air temperature in July, °F
Show year:
2025
2024
2023
The highest day temperature during July of 2025 was 95°F. At the same time the lowest night temperature was 55°F. Daily and nightly averages during July were 84.4°F and 64.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in July are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Boulder in July is 1.8 in. Other months of the year show relatively similar values.
Wind speed in July, mph
The average wind speed value in July is 6.5 mph It makes July one of the least windy months of the year.
Average sunny hours
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 July is: 9.5.
Best time for vacation in Boulder
Boulder on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boulder
Local time: 22:58
December 05, friday
0000
32°F
E
9 mph
9 mph
0300
32°F
E
9 mph
9 mph
0600
32°F
E
12 mph
12 mph
0900
32°F
E
11 mph
11 mph
1200
39°F
SW
4 mph
4 mph
1500
41°F
SW
6 mph
6 mph
1800
36°F
NE
6 mph
6 mph
2100
34°F
E
5 mph
5 mph
