Weather in Boulder in Spring
March | April | May | ||||
Average day temperature: | 38.3°F | 44.0°F | 55.7°F | |||
Average night temperature: | 24.3°F | 28.7°F | 39.1°F | |||
Number of sunny days: | 12 days | 13 days | 9 days | |||
Day length: | 11.3 - 12.6 h. | 12.7 - 13.9 h. | 13.9 - 14.8 h. | |||
Number of rainy days: | 1 day | 1 day | 4 days | |||
Precipitation totals: | 1.5 in. | 1.6 in. | 2.4 in. | |||
Number of snow days: | 2 days | 2 days | 0 days |
Day & Night air temperature, °F
March
April
May
0
9
18
27
36
45
54
63
72
55.7
44.0
38.3
39.1
28.7
24.3
Day temperature | Night temperature |
Precipitation total, in.
March
April
May
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
2.4
1.6
1.5
Sunny, partly cloudy and cloudy days
March
April
May
0
5
10
15
20
25
30
35
8
9
7
14
9
12
9
13
12
Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
March
April
May
0.0
1.4
2.7
4.1
5.5
6.8
8.2
9.6
6.7
8
7.7
Average sunny hours
March
April
May
0
1
2
3
4
5
6
7
8
9
8.1
7.9
7.1
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
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Boulder
Local time: 23:32
April 22, tuesday
0000

36°F
E
9 mph
9 mph
0300

34°F
E
7 mph
7 mph
0600

34°F
E
8 mph
8 mph
0900

46°F
NE
4 mph
4 mph
1200

55°F
E
11 mph
11 mph
1500

57°F
E
14 mph
14 mph
1800

52°F
SE
2 mph
2 mph
2100

41°F
E
8 mph
8 mph