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 is marked by a minor decrease in temperature, transitioning from a pleasant 73.2°F (22.9°C) in August to a refreshing 66.6°F (19.2°C). Throughout September, Rainbow Lake registers a consistent average low-temperature of 47.5°F (8.6°C).Humidity
In September, the average relative humidity is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 14.5 days and accumulates 2.05" (52mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Rainbow Lake is 12h and 30min.On the first day of September, sunrise is at 6:20 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:38 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.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 unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 during September translates into the following guidance:
Prioritize safety - Suggestions to prevent sun damage are offered. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rainbow Lake in September?
What is the average humidity in September?
What is the driest month in Rainbow Lake?
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?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Rainbow Lake, NY
- Average high temperature in September: 66.6°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 (22.3°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Rainbow 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
Rainbow Lake, NY
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are August and September (5.9mph).
Average humidity in September
Rainbow 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
Rainbow Lake, NY
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Rainbow Lake, NY
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Rainbow Lake, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rainbow Lake, NY
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (24.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Rainbow Lake, 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: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 12min).
Average sunshine days in September
Rainbow Lake, NY
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is February (2.8 days).
Average UV index in September
Rainbow Lake, NY
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Rainbow Lake, NY
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Rainbow Lake, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Rainbow Lake, New York, USA
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