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
With the commencement of September, Syracuse records a moderate temperature decline, with the average high easing from August's warm 24.7°C (76.5°F) to an agreeable 21.3°C (70.3°F). September brings an average low-temperature of 11.4°C (52.5°F) to Syracuse.Humidity
In Syracuse, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 26mm (1.02") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Syracuse, the average length of the day in September is 12h and 29min.On the first day of September in Syracuse, sunrise is at 6:29 am and sunset at 7:38 pm. On the last day of the month, 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 moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, an average UV index of 3 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Syracuse, NY
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is July (25.7°C).
The month with the lowest average high temperature is January (-2°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in September
Syracuse, NY
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in September
Syracuse, NY
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is January (16.8km/h).
The calmest month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in September
Syracuse, 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
Syracuse, NY
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Syracuse, 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
Syracuse, NY
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (92mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Syracuse, 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
Syracuse, 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
Syracuse, 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
Syracuse, 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
Syracuse, 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
Syracuse, NY
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March and December (8km).
Syracuse, New York, USA
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