September weather forecastThree Springs, PA
September
Weather in September
The first month of the autumn, September, is still a warm month in Three Springs, Pennsylvania, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 53.2°F (11.8°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 81.3°F (27.4°C) to a still warm 74.3°F (23.5°C). September nights in Three Springs observe an average temperature dip to a fresh 53.2°F (11.8°C).Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.85" (47mm) of precipitation.Snowfall
In Three Springs, snow does not fall in May through September.Daylight
In Three Springs, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:40 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm EDT.
Sunshine
In Three Springs, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Be vigilant - Preventing sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Three Springs, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Three Springs, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Three Springs, PA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Three Springs, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Three Springs, PA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Three Springs, PA
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Three Springs, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Three Springs, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Three Springs, PA
- Average daylight in September: 12h and 24min
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 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Three Springs, PA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Three Springs, PA
- Average UV index in September: 4
The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Three Springs, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Three Springs, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
