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
Chestertown's progression into September involves a gentle drop in the average high-temperature, from a warm 74.1°F (23.4°C) in August to a refreshing 67.1°F (19.5°C). Chestertown, during the month of September, experiences an average low-temperature of 47.5°F (8.6°C).Humidity
The average relative humidity in September is 81%.Rainfall
In Chestertown, in September, it is raining for 11.1 days, with typically 1.06" (27mm) of accumulated precipitation. In Chestertown, during the entire year, the rain falls for 160 days and collects up to 15.04" (382mm) of precipitation.Snowfall
In Chestertown, New York, snow does not fall in June 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 6:19 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:37 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In Chestertown, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 3 transforms into the following advice:
Exercise prevention - Warding off sunburn is urged. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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 much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Chestertown have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September in Chestertown?
What is the UV index reading in September?
Average temperature in September
Chestertown, NY
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Chestertown, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Chestertown, NY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Chestertown, NY
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Chestertown, NY
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is October (1.73").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in September
Chestertown, NY
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Chestertown, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chestertown, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chestertown, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in September
Chestertown, NY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Chestertown, NY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Chestertown, NY
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Chestertown, NY
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are January, February, March, August and September (4mi).
Chestertown, New York, USA
Weather forecast for your location
2. Allow the app to use your location