Denver Weather in September: Temperature, Precipitation, Wind

Temperature
18.9°C
66°F
High temperature
27°C
80.6°F
Low temperature
11.6°C
52.8°F
Feels like
18.6°C
65.5°F
Rainy days
6 days
Rainfall level
1.17mm
0.05 inch
Cloud coverage
42.5%
Wind speed
22.9km/h
14.2mph
Daylight time
12:26:38
UV index
7.9
1
partly cloudy day
27.0°C
81.0°F
2
partly cloudy day
25.8°C
78.0°F
3
rain
22.2°C
72.0°F
4
partly cloudy day
22.3°C
72.0°F
5
partly cloudy day
18.3°C
65.0°F
6
clear day
20.9°C
70.0°F
7
partly cloudy day
22.4°C
72.0°F
8
clear day
22.0°C
72.0°F
9
partly cloudy day
22.3°C
72.0°F
10
rain
15.2°C
59.0°F
11
rain
14.4°C
58.0°F
12
partly cloudy day
16.5°C
62.0°F
13
partly cloudy day
17.7°C
64.0°F
14
rain
14.7°C
58.0°F
15
rain
12.4°C
54.0°F
16
clear day
14.7°C
58.0°F
17
partly cloudy day
18.3°C
65.0°F
18
partly cloudy day
19.9°C
68.0°F
19
partly cloudy day
18.6°C
65.0°F
20
rain
17.9°C
64.0°F
21
partly cloudy day
17.7°C
64.0°F
22
partly cloudy day
17.7°C
64.0°F
23
partly cloudy day
15.4°C
60.0°F
24
clear day
15.8°C
60.0°F
25
clear day
17.7°C
64.0°F
26
clear day
18.1°C
65.0°F
27
partly cloudy day
20.6°C
69.0°F
28
partly cloudy day
21.2°C
70.0°F
29
partly cloudy day
18.9°C
66.0°F
30
partly cloudy day
20.4°C
69.0°F

In September, Denver, United States has warm weather with an average temperature of 18.9°C (66.0°F). The highs reach 27.0°C (80.6°F) on average, while the lows drop down to 11.6°C (52.9°F). You can expect the temperature to range between 11.0°C (51.8°F) and 26.0°C (78.8°F) on an average day.

The weather in Denver in September is relatively dry with occasional light showers. The city receives an average precipitation of 1.17 mm (0.05 inches) with a 20% chance of precipitation. Rain is the most common type of precipitation, occurring over 5 days of the month. Denver experiences an average humidity of 42.2%. Winds in September are moderate in Denver, with an average speed of 22.9 km/h (14.2 mph) and gusts up to 41.3 km/h (25.7 mph). The prevailing wind direction is from the south.

What is the temperature in Denver in September?

Average air temperature in Denver is 18.9°C (66°F) in September. The outside temperature in Denver feels like 18.6°C (65.5°F) on a typical September day. The highest average temperature during sunny days is 27°C (80.6°F) and feels like 26°C (78.8°F). The lowest average temperature after dark is 11.6°C (52.8°F) which feels like 11°C (51.8°F).

Daily Temperature in Denver in September 0°C / 32.0°F 10°C / 50.0°F 20°C / 68.0°F 30°C / 86.0°F 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

How hot is Denver in September?

The hot temperature in September in Denver rises to 35°C (95°F) on sunny days with low cloud coverage and 42.2% humidity. During hottest days of September it feels like 32.3 °C (90.1°F). The average maximum temp in Denver is 27°C (90.1°F) during day time in September.

How cold is Denver in September?

The coldest temp in Denver in September drops to 7°C (44.6°F) during the cold nights. With 22.9km/h (14.2mph) winds and 42.2% humidity it feels like 4.5°C (40.1°F) on the coldest nights. The average minimum temperature is 11.6°C (52.8°F) during night time in September.

Does it rain in Denver in September?

Yes, it rains for 6 days in Denver, United States in September averaging 1.17 mm of precipitation. Denver has a 20% chance for rain throughout the entire month of September.

How much does it rain in Denver throughout September?

Denver has 1.17 mm (0.05 inch) of rain per day on average in September. It rains for an average of 6 days out of the entire month.

Is Denver windy in September?

The average speed of wind in Denver, United States during September is 22.9km/h (14.2mph) and average windgust is 41.3km/h (25.7mph). On some days in September wind can reach up to 38.9km/h (24.2mph).

Daily wind speed in Denver in September 0km/h (0mph) 10km/h (6mph) 20km/h (12mph) 30km/h (19mph) 40km/h (25mph) 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

What is the direction of the wind in Denver in September?

Most days of September the wind is blowing from South direction in Denver.

What are the humidity levels in Denver in September?

The average humidity levels in Denver in September are 42.2%. Daily humidity levels in Denver range from 23.5% to 80.7% during September.

Daily humidity levels in Denver in September 0% 21% 42% 63% 84% 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

How many hours of daylight are in Denver in September?

Denver has 12 hours 26 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Denver in September is at 6:41:23 and the sunset is at 19:08:01.

What is the cloud coverage in Denver in September?

Clouds cover 42.5% of the sky on average throughout September in Denver. The cloud coverage ranges from 7.1% to 84% depending on the day of the month.

What is the UV level in September in Denver?

The average UV index in Denver is 7.9 in September. UV levels change throughout the month and range from 3 to 9.

What is the solar radiation in Denver in September?

The average solar radiation is 198.6 W/m2 (Watts per square meter) in Denver during September. However solar radiation levels change throughout the month and range from 48.5 W/m2 to 253 W/m2.

What is the solar energy during September in Denver?

The average solar energy during September in Denver is 17.2 MJ/m2 (megajoules per square metre). Solar energy ranges from 4.2 MJ/m2, to 21.8 MJ/m2 during September.

Are there severe weather risks in Denver in September?

Yes, there is a 10% risk for severe weather in Denver, United States in September.

What is the air pressure in Denver in September?

On average the air pressure in Denver in September is 1013.8 mb (millibars). Throughout the month the sea level pressure ranges from 1003.6 mb to 1021.9 mb.

What is the visibility in Denver in September?

The average daylight visibility in Denver in September is 15.8 km (9.8 miles). Depending on the precipitation the visibility ranges from 13.7 km (8.5 miles) to 16 km (9.9 miles) throughout September.

What is the dew point in Denver in September?

The average dew point in Denver during September is 3.4°C (38°F).

Where is the data for Denver climate in September coming from?

The climate data for Denver, Colorado, United States in September is collected from the following weather stations.

  • DENVER CENTENNIAL AIRPORT, CO US
  • AURORA BUCKLEY FIELD ANGB, CO US
  • DENVER INTERNATIONAL AIRPORT, CO US
  • CW7015 Denver CO US
  • KAPA
  • KBKF
  • KDEN