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
Stephen Heights's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 77.5°F (25.3°C) to a pleasant 71.1°F (21.7°C). During September, the nighttime temperature averages of 51.8°F (11°C).Humidity
The average relative humidity in September in Stephen Heights is 80%.Rainfall
January and September are months with the least rain when the rain falls for 10.6 days and typically aggregates up to 1.38" (35mm) of rain.Snowfall
June through September are months without snowfall.Daylight
In Stephen Heights, Pennsylvania, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of September, in Stephen Heights, sunrise is at 6:58 am and sunset at 6:45 pm EDT.
Sunshine
In Stephen Heights, Pennsylvania, the average sunshine in September is 8.5h.UV index
In Stephen Heights, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What are September temperatures in Stephen Heights?
What is the average humidity in September in Stephen Heights?
What is the driest month in Stephen Heights?
How much does it rain in Stephen Heights in September?
When it does not snow in Stephen Heights?
Does it snow in Stephen Heights in September?
How many hours of daylight does Stephen Heights have in September?
When is the sunrise / sunset in September in Stephen Heights?
How many hours of sunshine does Stephen Heights have in September?
What is the UV index reading in September in Stephen Heights?
Average temperature in September
Stephen Heights, PA
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Stephen Heights, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Stephen Heights, PA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Stephen Heights, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Stephen Heights, PA
- Average rainfall in September: 1.38"
The wettest months (with the highest rainfall) are May and July (2.4").
The driest months (with the least rainfall) are January and September (1.38").
Average rainfall days in September
Stephen Heights, PA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Stephen Heights, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stephen Heights, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stephen Heights, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Stephen Heights, PA
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Stephen Heights, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Stephen Heights, PA
- Average cloud cover in September: 43
The months with the most cloud cover are February and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Stephen Heights, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Stephen Heights, Pennsylvania, USA
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