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
September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 78.4°F (25.8°C) in August to a pleasant 72°F (22.2°C). Karthaus, in September, experiences an average temperature of 51.8°F (11°C) at night.Humidity
In September, the average relative humidity is 80%.Rainfall
In Karthaus, Pennsylvania, in September, it is raining for 13.3 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Karthaus, there are 165.7 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
In Karthaus, Pennsylvania, snow does not fall in June through September.Daylight
In September, the average length of the day in Karthaus is 12h and 28min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September in Karthaus is 8.1h.UV index
In September, the average daily maximum UV index in Karthaus is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 3 transforms into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the usual temperature for Karthaus in September?
What is the average humidity in September in Karthaus?
How much does it rain in Karthaus in September?
When it does not snow in Karthaus?
Does it snow in Karthaus in September?
How many hours of daylight does Karthaus have in September?
What time are sunrise and sunset in September in Karthaus?
How many hours of sunshine does Karthaus have in September?
How high is the UV index in September in Karthaus?
Average temperature in September
Karthaus, PA
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Karthaus, 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
Karthaus, PA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Karthaus, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (77%).
Average rainfall in September
Karthaus, PA
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is August (1.97").
Average rainfall days in September
Karthaus, PA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Karthaus, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Karthaus, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Karthaus, 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 18min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Karthaus, PA
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Karthaus, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Karthaus, PA
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
Karthaus, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Karthaus, Pennsylvania, USA
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