September weather forecastSidney, NY
September
Weather in September
September, the first month of the autumn in Sidney, is still a pleasant month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 69.1°F (20.6°C).Temperature
With the arrival of September, Sidney experiences a modest decline in average high-temperatures, transitioning from a moderately hot 76.3°F (24.6°C) in August to an agreeable 69.1°F (20.6°C). During September, Sidney experiences a consistent low-temperature average of 49.1°F (9.5°C).Humidity
The average relative humidity in September in Sidney is 81%.Rainfall
In Sidney, in September, it is raining for 12.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Sidney, New York, during the entire year, the rain falls for 156.8 days and collects up to 24.88" (632mm) of precipitation.Snowfall
June through September are months without snowfall in Sidney.Daylight
In Sidney, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:35 pm. On the last day of September, in Sidney, New York, sunrise is at 6:58 am and sunset at 6:44 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September in Sidney is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sidney, NY
- Average high temperature in September: 69.1°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 (27°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Sidney, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sidney, NY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Sidney, NY
- Average humidity in September: 81%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Sidney, NY
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is August (2.68").
The driest months (with the least rainfall) are January and February (1.61").
Average rainfall days in September
Sidney, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Sidney, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sidney, NY
- 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
Sidney, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Sidney, NY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Sidney, 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, February, November and December (UV index 1).
Average cloud cover in September
Sidney, NY
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
Sidney, NY
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
