Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A moderate decline in average high-temperatures is noted in September, moving from 82.4°F (28°C) in August to a still moderately hot 77°F (25°C). Denver records an average nighttime low-temperature of 57.6°F (14.2°C) throughout September.Humidity
The average relative humidity in September in Denver is 76%.Rainfall
In Denver, Missouri, during September, the rain falls for 11 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 130.3 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Denver is 12h and 27min.On the first day of September in Denver, Missouri, sunrise is at 6:45 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm CDT.
Sunshine
In September, the average sunshine in Denver is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the UV index of 5 transforms into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Denver?
What is the average humidity in September in Denver?
How much does it rain in Denver in September?
When it does not snow in Denver?
Does it snow in Denver in September?
How many hours of daylight does Denver have in September?
When are sunrise and sunset in September in Denver?
How long on average sun shines in September in Denver?
How high is the UV index in September in Denver?
Average temperature in September
Denver, MO
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 57.6°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Denver, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Denver, MO
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Denver, MO
- Average humidity in September: 76%
The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in September
Denver, MO
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is June (3.98").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in September
Denver, MO
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in September
Denver, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Denver, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Denver, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Denver, MO
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Denver, MO
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Denver, MO
- Average cloud cover in September: 29
The months with the most cloud cover are January and March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Denver, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Denver, Missouri, USA
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