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 shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 74.3°F (23.5°C) from a moderately hot 81.7°F (27.6°C). Thompsontown records an average temperature drop to a cool 54.3°F (12.4°C) in September.Humidity
In Thompsontown, the average relative humidity in September is 79%.Rainfall
In Thompsontown, in September, it is raining for 12.5 days, with typically 2.09" (53mm) of accumulated precipitation. In Thompsontown, during the entire year, the rain falls for 157.4 days and collects up to 28.46" (723mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Thompsontown, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:36 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Thompsontown have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Thompsontown, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Thompsontown, 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 (29.95"Hg).
Average wind speed in September
Thompsontown, PA
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Thompsontown, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Thompsontown, PA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in September
Thompsontown, PA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Thompsontown, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Thompsontown, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thompsontown, 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 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in September
Thompsontown, PA
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Thompsontown, 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
Thompsontown, PA
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Thompsontown, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, May, August, September and October (5mi).
Thompsontown, Pennsylvania, USA
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