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
As August transitions into September, Downsville sees a gentle drop in the average high-temperature, transitioning from a warm 75.7°F (24.3°C) to an agreeable 69.1°F (20.6°C). In Downsville, the nighttime temperature averages to a chilly 48.6°F (9.2°C) during September.Humidity
In Downsville, the average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 14.1 days and accumulates 2.24" (57mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Downsville, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:26 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to 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. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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 many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Downsville have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Downsville have in September?
What is the UV index reading in September?
Average temperature in September
Downsville, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in September
Downsville, 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
Downsville, NY
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Downsville, 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
Downsville, NY
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in September
Downsville, NY
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Downsville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Downsville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Downsville, NY
- Average daylight in September: 12h and 3min
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 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Downsville, NY
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in September
Downsville, 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 February, November and December (UV index 1).
Average cloud cover in September
Downsville, NY
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Downsville, NY
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, March, August, September and December (4mi).
Downsville, New York, USA
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