World Resorts USA Boulder Weather

Winter weather in Boulder

Weather in Boulder in Winter

December January February
Average day temperature: 37.0°F 30.0°F 32.0°F
Average night temperature: 24.4°F 17.4°F 18.5°F
Number of sunny days: 17 days 15 days 14 days
Day length: 9.3 - 9.5 h. 9.4 - 10.1 h. 10.2 - 11.3 h.
Number of rainy days: 0 days 0 days 0 days
Precipitation totals: 0.4 in. 0.4 in. 0.6 in.

Day & Night air temperature, °F

December
January
February
0
6
12
18
24
30
36
42
48
32.0
30.0
37.0
18.5
17.4
24.4
Day temperature   
Night temperature

Precipitation total, in.

December
January
February
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.8
0.9
0.6
0.4
0.4
Sunny, partly cloudy and cloudy days
December
January
February
0
5
10
15
20
25
30
35
6
7
5
8
9
9
14
15
17
Cloudy days   
Partly cloudy days   
Sunny days
Wind speed, mph
December
January
February
0.0
1.5
3.0
4.5
6.0
7.5
9.0
10.5
8.4
8.3
8.7
Average sunny hours
December
January
February
0
1
2
3
4
5
6
7
8
7.1
6.2
6.5

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

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 32.0 °F
December 37.0 °F
Rainiest months:
June 6 days
July 5 days
May 4 days
Windiest months:
December 8.7 mph
February 8.4 mph
January 8.3 mph

Boulder on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+46°F
+57°F
+75°F
+75°F
+88°F
+72°F
+79°F
+48°F
+79°F
+68°F
+57°F
+81°F
+84°F
+90°F
+39°F
24 Hours Forecast
Boulder
Local time: 12:54
April 10, thursday
1500
59°F
E
9 mph
1800
57°F
E
6 mph
2100
43°F
E
9 mph
April 11, friday
0000
39°F
E
9 mph
0300
39°F
E
9 mph
0600
37°F
E
9 mph
0900
50°F
E
6 mph
1200
63°F
E
8 mph
Units of measurement: °C / °F