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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's agreeable 73°F (22.8°C) to an enjoyable 66.7°F (19.3°C). Throughout the month of September, the average temperature dips to a frosty 47.5°F (8.6°C) at night.Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 140 rainfall days, and 29.17" (741mm) of precipitation is accumulated.Snowfall
In Long Lake, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:21 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:39 pm EDT.
Sunshine
In Long Lake, the average sunshine in September is 8.3h.UV index
In Long Lake, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Long Lake in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Long Lake?
What time are sunrise and sunset in September?
How many hours of sunshine does Long Lake have in September?
How high is the UV index in September?
Average temperature in September
Long Lake, NY
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in September
Long Lake, 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
Long Lake, NY
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).
Average humidity in September
Long Lake, NY
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Long Lake, NY
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is July (1.69").
Average rainfall days in September
Long Lake, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Long Lake, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Long Lake, NY
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Long Lake, 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 24min).
Average sunshine days in September
Long Lake, NY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Long Lake, 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, March and December (UV index 1).
Average cloud cover in September
Long Lake, NY
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 79).
The months with the least cloud cover are July, August and September (Cloud cover 41).
Average visibility in September
Long Lake, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Long Lake, New York, USA
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