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 transition into September subtly indicates a reduction in the average high-temperature, down to an agreeable 71.4°F (21.9°C) from August's warm 77.5°F (25.3°C). Casselman witnesses an average low-temperature of 52°F (11.1°C) throughout the month of September.Humidity
The average relative humidity in September is 81%.Rainfall
In Casselman, in September, it is raining for 15.6 days, with typically 2.32" (59mm) of accumulated precipitation. In Casselman, during the entire year, the rain falls for 183.2 days and collects up to 35.94" (913mm) of precipitation.Snowfall
June through September are months without snowfall in Casselman.Daylight
In September, the average length of the day in Casselman is 12h and 26min.On the first day of September, sunrise is at 6:45 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:00 pm EDT.
Sunshine
The average sunshine in September in Casselman is 8.2h.UV index
The average daily maximum UV index in September in Casselman is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Casselman?
What is the average humidity in September in Casselman?
How much does it rain in Casselman in September?
When it does not snow in Casselman?
Does it snow in Casselman in September?
How many hours of daylight does Casselman have in September?
When is the sunrise / sunset in September in Casselman?
How long on average sun shines in September in Casselman?
What is the UV index reading in September in Casselman?
Average temperature in September
Casselman, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Casselman, 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
Casselman, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Casselman, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June and July (79%).
Average rainfall in September
Casselman, PA
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in September
Casselman, PA
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is May (22.8 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Casselman, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Casselman, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Casselman, 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 24min).
- 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: 3h and 18min).
Average sunshine days in September
Casselman, PA
- Average sunshine days in September: 11.8 days
The months with the most sunshine days are October and November (12.5 days).
The month with the least sunshine days is May (6.2 days).
Average UV index in September
Casselman, 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, February, March, October, November and December (UV index 2).
Average cloud cover in September
Casselman, PA
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Casselman, 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).
Casselman, Pennsylvania, USA
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