Boulder, us-Colorado State, USA in September 2025 Historical Weather Query

Temperature Unit：
Wind Speed Unit：
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Monday Tuesday Wednesday Thursday Friday Saturday Sunday
1
Weather Icon
9.1 48.4 ~ 26.9°C 80.4°F
Sunrise: 06:29
Sunset: 19:32
 		2
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8.9 48 ~ 27.9°C 82.2°F
Sunrise: 06:30
Sunset: 19:30
 		3
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10.3 50.5 ~ 29.2°C 84.6°F
Sunrise: 06:31
Sunset: 19:29
 		4
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10.4 50.7 ~ 29.3°C 84.7°F
Sunrise: 06:32
Sunset: 19:27
 		5
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11.4 52.5 ~ 20.8°C 69.4°F
Sunrise: 06:33
Sunset: 19:25
 		6
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7.1 44.8 ~ 25.5°C 77.9°F
Sunrise: 06:34
Sunset: 19:24
 		7
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13.6 56.5 ~ 27.5°C 81.5°F
Sunrise: 06:34
Sunset: 19:22
8
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12.6 54.7 ~ 29.1°C 84.4°F
Sunrise: 06:35
Sunset: 19:21
 		9
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12.8 55 ~ 29°C 84.2°F
Sunrise: 06:36
Sunset: 19:19
 		10
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9.6 49.3 ~ 30.6°C 87.1°F
Sunrise: 06:37
Sunset: 19:17
 		11
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13.8 56.8 ~ 29.8°C 85.6°F
Sunrise: 06:38
Sunset: 19:16
 		12
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13 55.4 ~ 28°C 82.4°F
Sunrise: 06:39
Sunset: 19:14
 		13
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9.3 48.7 ~ 24°C 75.2°F
Sunrise: 06:40
Sunset: 19:12
 		14
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11.1 52 ~ 23.1°C 73.6°F
Sunrise: 06:41
Sunset: 19:11
15
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11 51.8 ~ 28.1°C 82.6°F
Sunrise: 06:42
Sunset: 19:09
 		16
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9.5 49.1 ~ 23°C 73.4°F
Sunrise: 06:43
Sunset: 19:07
 		17
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6.7 44.1 ~ 17.7°C 63.9°F
Sunrise: 06:44
Sunset: 19:06
 		18
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5.4 41.7 ~ 21.4°C 70.5°F
Sunrise: 06:45
Sunset: 19:04
 		19
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5.2 41.4 ~ 25.6°C 78.1°F
Sunrise: 06:46
Sunset: 19:02
 		20
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8.6 47.5 ~ 26.6°C 79.9°F
Sunrise: 06:47
Sunset: 19:01
 		21
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8.8 47.8 ~ 25.8°C 78.4°F
Sunrise: 06:48
Sunset: 18:59
22
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10.1 50.2 ~ 24.6°C 76.3°F
Sunrise: 06:49
Sunset: 18:57
 		23
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9.6 49.3 ~ 11.9°C 53.4°F
Sunrise: 06:50
Sunset: 18:56
 		24
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4.6 40.3 ~ 18.8°C 65.8°F
Sunrise: 06:51
Sunset: 18:54
 		25
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2.9 37.2 ~ 23.5°C 74.3°F
Sunrise: 06:52
Sunset: 18:52
 		26
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5.2 41.4 ~ 27.4°C 81.3°F
Sunrise: 06:52
Sunset: 18:51
 		27
Weather Icon
8 46.4 ~ 23.8°C 74.8°F
Sunrise: 06:53
Sunset: 18:49
 		28
Weather Icon
9.7 49.5 ~ 24.2°C 75.6°F
Sunrise: 06:54
Sunset: 18:47
29
Weather Icon
9 48.2 ~ 23.4°C 74.1°F
Sunrise: 06:55
Sunset: 18:46
 		30
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6.9 44.4 ~ 24.1°C 75.4°F
Sunrise: 06:56
Sunset: 18:44

Boulder, us-Colorado State, USA September 2025, including Minimum Temperature, Maximum Temperature, Total Precipitation, Total Snowfall, Rainy Days, Snowy Days, Maximum Wind Speed etc. Minimum Temperature is 2.9 °C, Maximum Temperature is 30.6 °C, Total Precipitation is 37.6 mm, Total Snowfall is 0 cm, Rainy Days is 13 days, Snowy Days is 0 days, Maximum Wind Speed is 56.9 km/h.

Show Fields

Date
Weather
Temperature
Wind Speed
Wind Direction
Apparent Temperature
Precipitation
Snowfall
Sunshine Duration
Shortwave Radiation
ET0 FAO Evapotranspiration
9/1
Weather Icon Mainly clear
9.1 48.4
26.9°C 80.4°F
26.6 km/h 16.5 mph 7.4 m/s 14.4 knots
↑
7.4 ~ 25.7°C 45.3 ~ 78.3°F
0 mm
0 cm
12 h
23.6 MJ/m²
4.7 mm
9/2
Weather Icon Partly cloudy
8.9 48
27.9°C 82.2°F
37.8 km/h 23.5 mph 10.5 m/s 20.4 knots
↑
7.4 ~ 25.9°C 45.3 ~ 78.6°F
0 mm
0 cm
12 h
22.3 MJ/m²
4.9 mm
9/3
Weather Icon Partly cloudy
10.3 50.5
29.2°C 84.6°F
32.8 km/h 20.4 mph 9.1 m/s 17.7 knots
↑
8.3 ~ 27.9°C 46.9 ~ 82.2°F
0 mm
0 cm
12 h
22.3 MJ/m²
5.2 mm
9/4
Weather Icon Overcast
10.4 50.7
29.3°C 84.7°F
35.6 km/h 22.1 mph 9.9 m/s 19.2 knots
↑
8.2 ~ 28.2°C 46.8 ~ 82.8°F
0 mm
0 cm
11 h
22.8 MJ/m²
5.2 mm
9/5
Weather Icon Overcast
11.4 52.5
20.8°C 69.4°F
35.6 km/h 22.1 mph 9.9 m/s 19.2 knots
↑
10 ~ 18.1°C 50 ~ 64.6°F
0 mm
0 cm
10 h
18.1 MJ/m²
3.6 mm
9/6
Weather Icon Overcast
7.1 44.8
25.5°C 77.9°F
29.5 km/h 18.3 mph 8.2 m/s 15.9 knots
↑
5.5 ~ 23.8°C 41.9 ~ 74.8°F
0 mm
0 cm
12 h
22.6 MJ/m²
4.4 mm
9/7
Weather Icon Moderate drizzle
13.6 56.5
27.5°C 81.5°F
42.1 km/h 26.2 mph 11.7 m/s 22.7 knots
↑
12.5 ~ 26.6°C 54.5 ~ 79.9°F
0.8 mm
0 cm
11.9 h
21.2 MJ/m²
4.7 mm
9/8
Weather Icon Overcast
12.6 54.7
29.1°C 84.4°F
42.8 km/h 26.6 mph 11.9 m/s 23.1 knots
↑
9.6 ~ 26.4°C 49.3 ~ 79.5°F
0 mm
0 cm
11.9 h
20.3 MJ/m²
5.5 mm
9/9
Weather Icon Moderate drizzle
12.8 55
29°C 84.2°F
36.4 km/h 22.6 mph 10.1 m/s 19.7 knots
↑
10.2 ~ 27.2°C 50.4 ~ 81°F
0.5 mm
0 cm
11.8 h
20.4 MJ/m²
4.8 mm
9/10
Weather Icon Overcast
9.6 49.3
30.6°C 87.1°F
30.6 km/h 19 mph 8.5 m/s 16.5 knots
↑
8.2 ~ 29.1°C 46.8 ~ 84.4°F
0 mm
0 cm
11.8 h
21.2 MJ/m²
4.8 mm
9/11
Weather Icon Moderate drizzle
13.8 56.8
29.8°C 85.6°F
52.9 km/h 32.9 mph 14.7 m/s 28.6 knots
↑
12.3 ~ 28°C 54.1 ~ 82.4°F
1.3 mm
0 cm
11.7 h
18.8 MJ/m²
4.5 mm
9/12
Weather Icon Light drizzle
13 55.4
28°C 82.4°F
46.4 km/h 28.8 mph 12.9 m/s 25.1 knots
↑
11.7 ~ 26.2°C 53.1 ~ 79.2°F
0.1 mm
0 cm
9.5 h
15.4 MJ/m²
3.8 mm
9/13
Weather Icon Moderate drizzle
9.3 48.7
24°C 75.2°F
56.9 km/h 35.4 mph 15.8 m/s 30.7 knots
↑
8.5 ~ 22.9°C 47.3 ~ 73.2°F
1.8 mm
0 cm
11.3 h
17.5 MJ/m²
3.4 mm
9/14
Weather Icon Light drizzle
11.1 52
23.1°C 73.6°F
34.2 km/h 21.3 mph 9.5 m/s 18.5 knots
↑
8 ~ 21.2°C 46.4 ~ 70.2°F
0.8 mm
0 cm
10.5 h
18.7 MJ/m²
3.7 mm
9/15
Weather Icon Overcast
11 51.8
28.1°C 82.6°F
36.4 km/h 22.6 mph 10.1 m/s 19.7 knots
↑
7.9 ~ 26.4°C 46.2 ~ 79.5°F
0 mm
0 cm
11.6 h
20.8 MJ/m²
4.8 mm
9/16
Weather Icon Light drizzle
9.5 49.1
23°C 73.4°F
36.7 km/h 22.8 mph 10.2 m/s 19.8 knots
↑
7.8 ~ 21.3°C 46 ~ 70.3°F
0.3 mm
0 cm
10.7 h
18 MJ/m²
3.6 mm
9/17
Weather Icon Light drizzle
6.7 44.1
17.7°C 63.9°F
32 km/h 19.9 mph 8.9 m/s 17.3 knots
↑
5 ~ 17.8°C 41 ~ 64°F
0.2 mm
0 cm
11.5 h
18.6 MJ/m²
3 mm
9/18
Weather Icon Mainly clear
5.4 41.7
21.4°C 70.5°F
26.6 km/h 16.5 mph 7.4 m/s 14.4 knots
↑
3.6 ~ 19.8°C 38.5 ~ 67.6°F
0 mm
0 cm
11.4 h
21.2 MJ/m²
3.7 mm
9/19
Weather Icon Overcast
5.2 41.4
25.6°C 78.1°F
30.6 km/h 19 mph 8.5 m/s 16.5 knots
↑
3.1 ~ 22.6°C 37.6 ~ 72.7°F
0 mm
0 cm
10.8 h
20 MJ/m²
4.2 mm
9/20
Weather Icon Overcast
8.6 47.5
26.6°C 79.9°F
50.8 km/h 31.6 mph 14.1 m/s 27.4 knots
↑
7.2 ~ 25°C 45 ~ 77°F
0 mm
0 cm
10.9 h
17.3 MJ/m²
3.6 mm
9/21
Weather Icon Slight rain
8.8 47.8
25.8°C 78.4°F
29.2 km/h 18.1 mph 8.1 m/s 15.8 knots
↑
7.2 ~ 24.8°C 45 ~ 76.6°F
1.6 mm
0 cm
11.3 h
17 MJ/m²
3.7 mm
9/22
Weather Icon Moderate rain
10.1 50.2
24.6°C 76.3°F
43.6 km/h 27.1 mph 12.1 m/s 23.5 knots
↑
7.6 ~ 23°C 45.7 ~ 73.4°F
10 mm
0 cm
10.7 h
15.8 MJ/m²
3.3 mm
9/23
Weather Icon Slight rain
9.6 49.3
11.9°C 53.4°F
34.9 km/h 21.7 mph 9.7 m/s 18.8 knots
↑
7.2 ~ 10.9°C 45 ~ 51.6°F
19.6 mm
0 cm
0 h
3.4 MJ/m²
0.7 mm
9/24
Weather Icon Overcast
4.6 40.3
18.8°C 65.8°F
24.5 km/h 15.2 mph 6.8 m/s 13.2 knots
↑
2.4 ~ 18.1°C 36.3 ~ 64.6°F
0 mm
0 cm
11.2 h
20.3 MJ/m²
3.3 mm
9/25
Weather Icon Clear sky
2.9 37.2
23.5°C 74.3°F
21.6 km/h 13.4 mph 6 m/s 11.7 knots
↑
0.4 ~ 21.7°C 32.7 ~ 71.1°F
0 mm
0 cm
11.1 h
20.9 MJ/m²
3.8 mm
9/26
Weather Icon Overcast
5.2 41.4
27.4°C 81.3°F
40 km/h 24.9 mph 11.1 m/s 21.6 knots
↑
2.5 ~ 24.4°C 36.5 ~ 75.9°F
0 mm
0 cm
10.9 h
19.7 MJ/m²
4.4 mm
9/27
Weather Icon Light drizzle
8 46.4
23.8°C 74.8°F
40 km/h 24.9 mph 11.1 m/s 21.6 knots
↑
6.6 ~ 22.4°C 43.9 ~ 72.3°F
0.2 mm
0 cm
10.7 h
18.6 MJ/m²
3.5 mm
9/28
Weather Icon Overcast
9.7 49.5
24.2°C 75.6°F
36 km/h 22.4 mph 10 m/s 19.4 knots
↑
8.2 ~ 23.1°C 46.8 ~ 73.6°F
0 mm
0 cm
10.2 h
17.1 MJ/m²
3.5 mm
9/29
Weather Icon Light drizzle
9 48.2
23.4°C 74.1°F
47.2 km/h 29.3 mph 13.1 m/s 25.5 knots
↑
7.5 ~ 21.7°C 45.5 ~ 71.1°F
0.4 mm
0 cm
10.6 h
15.2 MJ/m²
3.1 mm
9/30
Weather Icon Overcast
6.9 44.4
24.1°C 75.4°F
30.2 km/h 18.8 mph 8.4 m/s 16.3 knots
↑
5.2 ~ 21.9°C 41.4 ~ 71.4°F
0 mm
0 cm
10.8 h
17.6 MJ/m²
3.6 mm

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