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 sea temperature 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 beginning of September brings a slight decrease in the average high-temperature, transitioning from a warm 75.7°F (24.3°C) in August to a pleasant 68.9°F (20.5°C). The average low-temperature of 54°F (12.2°C) is witnessed in Alexandria Bay during September.Humidity
The average relative humidity in September in Alexandria Bay is 77%.Rainfall
September is the month with the least rainfall in Alexandria Bay, New York. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.Snowfall
June through September are months without snowfall in Alexandria Bay.Ocean temperature
In Alexandria Bay, the average seawater temperature in September is 64.8°F (18.2°C).Note: Swimming becomes less enjoyable for most at a surface water temperature of 64.8°F (18.2°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.
Daylight
In Alexandria Bay, New York, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:45 pm EDT.
Sunshine
The average sunshine in September in Alexandria Bay is 9.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What are the temperatures in Alexandria Bay in September?
What is the average humidity in September in Alexandria Bay?
What is the driest month in Alexandria Bay?
How much does it rain in Alexandria Bay in September?
When it does not snow in Alexandria Bay?
Does it snow in Alexandria Bay in September?
What is the ocean temperature in September in Alexandria Bay?
What is the average length of the day in September in Alexandria Bay?
When are sunrise and sunset in September in Alexandria Bay?
How long on average sun shines in September in Alexandria Bay?
How high is the UV index in September in Alexandria Bay?
Average temperature in September
Alexandria Bay, NY
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Alexandria Bay, 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 (29.91"Hg).
Average wind speed in September
Alexandria Bay, NY
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Alexandria Bay, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Alexandria Bay, NY
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Alexandria Bay, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Alexandria Bay, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alexandria Bay, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Alexandria Bay, NY
- Average sea temperature in September: 64.8°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is March (35.9°F).
Average daylight in September /
Average sunshine in September
Alexandria Bay, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Alexandria Bay, 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 January (7.9 days).
Average UV index in September
Alexandria Bay, 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
Alexandria Bay, NY
- Average cloud cover in September: 31
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 29).
Average visibility in September
Alexandria Bay, NY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Alexandria Bay, New York, USA
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