September weather forecastOnondaga Hill, NY
September
Weather in September
September, the first month of the autumn in Onondaga Hill, is still a pleasant month, with an average temperature varying between 70.3°F (21.3°C) and 52.5°F (11.4°C).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a moderately hot 76.5°F (24.7°C) in August to an agreeable 70.3°F (21.3°C). In Onondaga Hill, an average low-temperature of 52.5°F (11.4°C) is recorded during September nights.Humidity
In September, the average relative humidity in Onondaga Hill is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 1.02" (26mm) of precipitation.Snowfall
In Onondaga Hill, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:47 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during September translates into the following guidance:
Take precautions - Protection against sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, NY
- Average daylight in September: 12h and 30min
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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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
Onondaga Hill, 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).
