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 transition into September subtly indicates a reduction in the average high-temperature, down to a pleasant 72.3°F (22.4°C) from August's warm 78.4°F (25.8°C). September registers an average low temperature of 65.3°F (18.5°C) in Freeport, subtly lower than the daytime maximum.Humidity
In Freeport, the average relative humidity in September is 75%.Rainfall
In Freeport, during September, the rain falls for 13.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Freeport, during the entire year, the rain falls for 159.2 days and collects up to 37.17" (944mm) of precipitation.Snowfall
In Freeport, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of September, in Freeport, sunrise is at 6:50 am and sunset at 6:37 pm EDT.
Sunshine
In Freeport, New York, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. 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: In September, the maximum UV index of 5 transforms into these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Freeport in September?
What is the average humidity in September in Freeport?
How much does it rain in Freeport in September?
When it does not snow in Freeport?
Does it snow in Freeport in September?
What is the average length of the day in September in Freeport?
What time are sunrise and sunset in September in Freeport?
How many hours of sunshine does Freeport have in September?
What is the UV index intensity in September in Freeport?
Average temperature in September
Freeport, NY
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Freeport, NY
- Average pressure in September: 30.05"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
Freeport, NY
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in September
Freeport, NY
- Average humidity in September: 75%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in September
Freeport, NY
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is July (4.17").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in September
Freeport, NY
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Freeport, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Freeport, NY
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Freeport, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Freeport, NY
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Freeport, NY
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
Freeport, NY
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Freeport, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Freeport, New York, USA
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