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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 75.4°F (24.1°C) in August to an agreeable 69.1°F (20.6°C). During September, Grout Mill records an average temperature of 50.5°F (10.3°C) at night.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Grout Mill, the rain falls for 12.9 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 149.8 rainfall days, and 22.36" (568mm) of precipitation is accumulated.Snowfall
In Grout Mill, snow does not fall in June through September.Daylight
In Grout Mill, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:30 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Grout Mill, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take precautions - Protection against sun damage is advised. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grout Mill in September?
What is the average humidity in September in Grout Mill?
How much 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?
What time are sunrise and sunset in September?
How many hours of sunshine does Grout Mill have in September?
What is the UV index intensity in September?
Average temperature in September
Grout Mill, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Grout Mill, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Grout Mill, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Grout Mill, NY
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in September
Grout Mill, NY
- Average rainfall in September: 1.54"
The wettest months (with the highest rainfall) are May and July (2.48").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in September
Grout Mill, NY
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Grout Mill, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grout Mill, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grout Mill, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
Grout Mill, NY
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in September
Grout Mill, 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
Grout Mill, NY
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Grout Mill, NY
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).
Grout Mill, New York, USA
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