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 onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 76.6°F (24.8°C) in August to a pleasant 70.5°F (21.4°C). September witnesses an average nighttime temperature of 51.6°F (10.9°C).Humidity
In Casowasco, the average relative humidity in September is 80%.Rainfall
The months with the least rainfall are January and September Rain falls for 9.5 days and accumulates 0.67" (17mm) of rain.Snowfall
June through September are months without snowfall.Daylight
In Casowasco, New York, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:31 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:48 pm EDT.
Sunshine
In Casowasco, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Casowasco is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Casowasco in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September in Casowasco?
When it does not snow?
Does it snow in September?
How many hours of daylight does Casowasco have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Casowasco have in September?
What is the UV index intensity in September?
Average temperature in September
Casowasco, NY
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in September
Casowasco, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Casowasco, NY
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in September
Casowasco, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
Casowasco, NY
- Average rainfall in September: 0.67"
The wettest months (with the highest rainfall) are May and June (1.22").
The driest months (with the least rainfall) are January and September (0.67").
Average rainfall days in September
Casowasco, NY
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Casowasco, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Casowasco, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Casowasco, 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: 8h and 5min
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 30min).
Average sunshine days in September
Casowasco, NY
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Casowasco, 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 and December (UV index 1).
Average cloud cover in September
Casowasco, NY
- Average cloud cover in September: 37
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 34).
Average visibility in September
Casowasco, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March and July (5mi).
Casowasco, New York, USA
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