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
September
Weather in September
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 73.9°F (23.3°C) in August to a refreshing 67.6°F (19.8°C). The average nighttime temperature lowers to a frosty 48.2°F (9°C) throughout September.Humidity
In September, the average relative humidity is 83%.Rainfall
The month with the least rainfall is September, when the rain falls for 14 days and typically collects 2.99" (76mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:31 pm. On the last day of September, in Highmount, sunrise is at 6:54 am and sunset at 6:40 pm EDT.
Sunshine
The average sunshine in September is 7.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. To guard against the harmful effects of the Sun, minimize exposure during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September in Highmount?
What is the driest month in Highmount?
How many days does it rain in September?
When it does not snow in Highmount?
Does it snow in September?
How many hours of daylight does Highmount have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Highmount have in September?
How high is the UV index in September?
Average temperature in September
Highmount, NY
- Average high temperature in September: 67.6°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in September: 48.2°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 (13.8°F).
Average pressure in September
Highmount, 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
Highmount, NY
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Highmount, NY
- Average humidity in September: 83%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (80%).
Average rainfall in September
Highmount, NY
- Average rainfall in September: 2.99"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.99").
Average rainfall days in September
Highmount, NY
- Average rainfall days in September: 14 days
The months with the highest number of rainy days are May and July (19.9 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Highmount, NY
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (17.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Highmount, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Highmount, 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: 7h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Highmount, NY
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.4 days).
Average UV index in September
Highmount, 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, February, March, November and December (UV index 1).
Average cloud cover in September
Highmount, NY
- Average cloud cover in September: 51
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in September
Highmount, NY
- Average visibility in September: 4mi
The month with the highest visibility is June (5mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (4mi).