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
The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 80.6°F (27°C) to a still warm 74.5°F (23.6°C). An average low-temperature of 55.8°F (13.2°C) is expected during September.Humidity
In Denver, the average relative humidity in September is 80%.Rainfall
In Denver, during September, the rain falls for 9.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Denver, Pennsylvania, during the entire year, the rain falls for 127.9 days and collects up to 11.69" (297mm) of precipitation.Snowfall
April, June through October are months without snowfall in Denver, Pennsylvania.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.
Sunshine
In Denver, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Denver is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 4 in September transforms into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the average September temperature 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?
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, PA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Denver, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Denver, PA
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Denver, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Denver, PA
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Denver, PA
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Denver, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in September
Denver, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Denver, PA
- 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 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Denver, PA
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in September
Denver, PA
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Denver, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Denver, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).
Denver, Pennsylvania, USA
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