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
As August makes way for September, Jefferson Heights's average high-temperature eases from a moderately hot 78.4°F (25.8°C) to an agreeable 71.4°F (21.9°C). Throughout the nights in September, Jefferson Heights experiences an average low-temperature of 51.4°F (10.8°C).Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.97" (50mm) of precipitation.Snowfall
In Jefferson Heights, snow does not fall in June through September.Daylight
In Jefferson Heights, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:38 pm EDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious.
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?
What is the driest month?
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?
When is the sunrise / sunset in September?
How many hours of sunshine does Jefferson Heights have in September?
What is the UV index intensity in September?
Average temperature in September
Jefferson Heights, NY
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°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
Jefferson Heights, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Jefferson Heights, NY
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Jefferson Heights, NY
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June and July (76%).
Average rainfall in September
Jefferson Heights, NY
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Jefferson Heights, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Jefferson Heights, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Jefferson Heights, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jefferson Heights, 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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Jefferson Heights, NY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in September
Jefferson Heights, 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, March, October, November and December (UV index 2).
Average cloud cover in September
Jefferson Heights, NY
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Jefferson Heights, NY
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Jefferson Heights, New York, USA
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