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
Marion in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 77.5°F (25.3°C) to an agreeable 71.2°F (21.8°C). Nightly temperatures drop to an average low of 55°F (12.8°C) in September.Humidity
April, August and September, with an average relative humidity of 77%, are the least humid months.Rainfall
The month with the least rainfall in Marion is September, when the rain falls for 9.7 days and typically collects 0.47" (12mm) of precipitation.Snowfall
In Marion, snow does not fall in June through September.Daylight
In Marion, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:43 pm. On the last day of September, in Marion, New York, sunrise is at 7:05 am and sunset at 6:51 pm EDT.
Sunshine
In September, the average sunshine in Marion is 9.2h.UV index
In Marion, 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 radiation for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Marion?
What is the least humid month in Marion?
What is the average humidity in September in Marion?
What is the driest month in Marion?
How many days does it rain in September in Marion?
When it does not snow in Marion?
Does it snow in Marion in September?
How many hours of daylight does Marion have in September?
What time are sunrise and sunset in September in Marion?
How long on average sun shines in September in Marion?
What is the UV index intensity in September in Marion?
Average temperature in September
Marion, NY
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Marion, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Marion, NY
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are January and February (11.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Marion, NY
- Average humidity in September: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, August and September (77%).
Average rainfall in September
Marion, NY
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is October (0.98").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in September
Marion, NY
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are May and August (11.8 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Marion, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marion, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marion, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Marion, NY
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is February (13.4 days).
Average UV index in September
Marion, NY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Marion, NY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Marion, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Marion, New York, USA
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