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
Herman, Pennsylvania, in September undergoes a slight reduction in the average high-temperature, shifting from August's 80.8°F (27.1°C) to a still warm 74.3°F (23.5°C). Herman records a consistent low-temperature of 54.5°F (12.5°C) during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Herman, in September, it is raining for 15.4 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 182.7 rainfall days, and 36.18" (919mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Herman.Daylight
In Herman, Pennsylvania, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Herman, Pennsylvania, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Heed the precautions - Suggestions to avoid sunburn are made. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What are the temperatures in Herman in September?
What is the average humidity in September in Herman?
How much does it rain in Herman in September?
When it does not snow in Herman?
Does it snow in Herman in September?
What is the average length of the day in September in Herman?
When is the sunrise / sunset in September in Herman?
How long on average sun shines in September in Herman?
What is the UV index intensity in September in Herman?
Average temperature in September
Herman, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Herman, 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 (29.94"Hg).
Average wind speed in September
Herman, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Herman, PA
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Herman, PA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (3.74").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Herman, PA
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Herman, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Herman, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Herman, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Herman, PA
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is November (13.7 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Herman, PA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Herman, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Herman, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Herman, Pennsylvania, USA
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