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
A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 79.3°F (26.3°C) in August to an agreeable 72.1°F (22.3°C). September witnesses an average nighttime temperature of 51.4°F (10.8°C) in Ballston Spa.Humidity
In September, the average relative humidity in Ballston Spa is 77%.Rainfall
In Ballston Spa, in September, during 11 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, in Ballston Spa, there are 140.7 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
In Ballston Spa, New York, snow does not fall in June through September.Daylight
In Ballston Spa, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:37 pm EDT.
Sunshine
In Ballston Spa, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Ballston Spa, New York, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the average September temperature in Ballston Spa?
What is the average humidity in September in Ballston Spa?
How much does it rain in Ballston Spa in September?
When it does not snow in Ballston Spa?
Does it snow in Ballston Spa in September?
How many hours of daylight does Ballston Spa have in September?
When are sunrise and sunset in September in Ballston Spa?
How long on average sun shines in September in Ballston Spa?
What is the UV index reading in September in Ballston Spa?
Average temperature in September
Ballston Spa, NY
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in September
Ballston Spa, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Ballston Spa, NY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Ballston Spa, NY
- Average humidity in September: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Ballston Spa, NY
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is March (1.97").
Average rainfall days in September
Ballston Spa, NY
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Ballston Spa, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ballston Spa, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ballston Spa, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Ballston Spa, NY
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Ballston Spa, NY
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Ballston Spa, NY
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Ballston Spa, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August and September (5mi).
Ballston Spa, New York, USA
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