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 beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 76.5°F (24.7°C) in August to an agreeable 70.3°F (21.3°C). South Onondaga's average low-temperature during September nights is observed to be a fresh 52.5°F (11.4°C).Humidity
In September, the average relative humidity in South Onondaga is 79%.Rainfall
September is the month with the least rainfall in South Onondaga. Rain falls for 11.2 days and accumulates 1.02" (26mm) of precipitation.Snowfall
In South Onondaga, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:39 pm. On the last day of September, in South Onondaga, sunrise is at 7:01 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index in South Onondaga, New York, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Be vigilant - Preventing sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in South Onondaga?
What is the average humidity in September in South Onondaga?
What is the driest month in South Onondaga?
How much does it rain in South Onondaga in September?
When it does not snow in South Onondaga?
Does it snow in South Onondaga in September?
What is the average length of the day in September in South Onondaga?
When are sunrise and sunset in September in South Onondaga?
How many hours of sunshine does South Onondaga have in September?
What is the UV index reading in September in South Onondaga?
Average temperature in September
South Onondaga, NY
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
South Onondaga, 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
South Onondaga, NY
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
South Onondaga, NY
- Average humidity in September: 79%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
South Onondaga, NY
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in September
South Onondaga, NY
- Average rainfall days in September: 11.2 days
The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
South Onondaga, NY
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
South Onondaga, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
South Onondaga, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
South Onondaga, NY
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in September
South Onondaga, NY
- 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 and December (UV index 1).
Average cloud cover in September
South Onondaga, NY
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
South Onondaga, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
South Onondaga, New York, USA
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