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
In Addison, the average high-temperature in September gently drops from a moderately hot 76.6°F (24.8°C) in August to an agreeable 69.8°F (21°C). Addison, during the nights of September, experiences an average temperature drop to a chilly 49.8°F (9.9°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In September, in Addison, New York, the rain falls for 13.7 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 176.1 rainfall days, and 28.74" (730mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Addison, New York, the average length of the day in September is 12h and 28min.On the first day of September in Addison, sunrise is at 6:35 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:51 pm EDT.
Sunshine
In September, the average sunshine in Addison is 8.5h.UV index
The average daily maximum UV index in September in Addison is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are September temperatures in Addison?
What is the average humidity in September in Addison?
How many days does it rain in September in Addison?
When it does not snow in Addison?
Does it snow in Addison in September?
What is the average length of the day in September in Addison?
What time are sunrise and sunset in September in Addison?
How long on average sun shines in September in Addison?
How high is the UV index in September in Addison?
Average temperature in September
Addison, NY
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Addison, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Addison, NY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Addison, NY
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in September
Addison, NY
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in September
Addison, NY
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in September
Addison, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Addison, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Addison, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Addison, NY
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (6.9 days).
Average UV index in September
Addison, 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 and December (UV index 1).
Average cloud cover in September
Addison, NY
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Addison, NY
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Addison, New York, USA
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