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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 75.7°F (24.3°C) in August to a pleasant 69.1°F (20.6°C). In September, De Peyster records an average nighttime temperature of 51.1°F (10.6°C).Humidity
The average relative humidity in September is 80%.Rainfall
In De Peyster, during September, the rain falls for 13.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, there are 159.6 rainfall days, and 24.25" (616mm) of precipitation is accumulated.Snowfall
In De Peyster, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:25 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:43 pm EDT.
Sunshine
In De Peyster, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days 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
De Peyster, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in September
De Peyster, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
De Peyster, NY
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
De Peyster, NY
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
De Peyster, NY
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in September
De Peyster, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
De Peyster, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
De Peyster, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
De Peyster, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
De Peyster, 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 (8.4 days).
Average UV index in September
De Peyster, NY
- Average UV index in September: 3
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
De Peyster, NY
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
De Peyster, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
De Peyster, New York, USA
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