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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 75.7°F (24.3°C) in August to a pleasant 69.4°F (20.8°C). Alma usually reports an average low-temperature of 49.1°F (9.5°C) during the month of September.Humidity
In September, the average relative humidity in Alma is 81%.Rainfall
The months with the least rainfall in Alma are January, March and September Rain falls for 12.5 days and accumulates 1.22" (31mm) of rain.Snowfall
In Alma, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September in Alma is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Alma?
What is the average humidity in September in Alma?
What is the driest month in Alma?
How many days does it rain in September in Alma?
When it does not snow in Alma?
Does it snow in Alma in September?
How many hours of daylight does Alma have in September?
When is the sunrise / sunset in September in Alma?
How long on average sun shines in September in Alma?
What is the UV index reading in September in Alma?
Average temperature in September
Alma, NY
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in September
Alma, 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
Alma, NY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Alma, NY
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Alma, NY
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is April (2.05").
The driest months (with the least rainfall) are January, March and September (1.22").
Average rainfall days in September
Alma, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Alma, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alma, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alma, 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 0min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and December (Average sunshine: 2h and 30min).
Average sunshine days in September
Alma, NY
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Alma, 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
Alma, NY
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in September
Alma, NY
- Average visibility in September: 4mi
The months with the highest visibility are February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are January, August and September (4mi).
Alma, New York, USA
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