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
As September arrives, Lake Denise's weather displays a minor decrease in high-temperatures, transitioning from August's 81.1°F (27.3°C) to a still moderately hot 75°F (23.9°C). In September, Lake Denise reports a consistent average low-temperature of 54.7°F (12.6°C) during the nights.Humidity
In Lake Denise, the average relative humidity in September is 78%.Rainfall
In Lake Denise, in September, during 13.7 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Lake Denise, during the entire year, the rain falls for 174.1 days and collects up to 23.82" (605mm) of precipitation.Snowfall
In Lake Denise, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:02 pm EDT.
Sunshine
In Lake Denise, the average sunshine in September is 8.8h.UV index
In Lake Denise, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lake Denise in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Lake Denise, PA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Lake Denise, PA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Lake Denise, PA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Lake Denise, PA
- Average humidity in September: 78%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Lake Denise, PA
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in September
Lake Denise, PA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Lake Denise, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lake Denise, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Denise, 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 August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Lake Denise, PA
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index in September
Lake Denise, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Lake Denise, PA
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Lake Denise, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Lake Denise, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location