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
With the onset of September, Denver's climate undergoes a slight change as the average high-temperature moves from a warm 74.8°F (23.8°C) in August to an agreeable 68°F (20°C). In September, Denver records an average nighttime temperature of 48.2°F (9°C).Humidity
The average relative humidity in September is 82%.Rainfall
In Denver, during September, the rain falls for 14.4 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Denver, during the entire year, the rain falls for 176 days and collects up to 37.4" (950mm) of precipitation.Snowfall
In Denver, New York, snow does not fall in June through September.Daylight
In Denver, the average length of the day in September is 12h and 28min.On the first day of September in Denver, sunrise is at 6:24 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:41 pm EDT.
Sunshine
In September, the average sunshine in Denver is 8h.UV index
In September, the average daily maximum UV index in Denver is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Denver?
What is the average humidity in September in Denver?
How many days does it rain in September in Denver?
When it does not snow in Denver?
Does it snow in Denver in September?
How many hours of daylight does Denver have in September?
What time are sunrise and sunset in September in Denver?
How long on average sun shines in September in Denver?
What is the UV index reading in September in Denver?
Average temperature in September
Denver, NY
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Denver, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Denver, NY
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Denver, NY
- Average humidity in September: 82%
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are April, May, June and July (80%).
Average rainfall in September
Denver, NY
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is August (3.78").
The driest months (with the least rainfall) are January and November (2.52").
Average rainfall days in September
Denver, NY
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Denver, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Denver, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.2 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, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Denver, NY
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is September (12.3 days).
The month with the least sunshine days is February (4.5 days).
Average UV index in September
Denver, NY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Denver, NY
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Denver, NY
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June and July (5mi).
The months with the lowest visibility are January, February, March, August, September, October, November and December (4mi).
Denver, New York, USA
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