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 September arrives, Port Gibson's weather displays a minor decrease in high-temperatures, transitioning from August's warm 77.5°F (25.3°C) to a pleasant 71.2°F (21.8°C). In September, Port Gibson experiences a temperature dip to an average of 55°F (12.8°C) at night.Humidity
April, August and September, with an average relative humidity of 77%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.47" (12mm) of precipitation.Snowfall
In Port Gibson, New York, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September in Port Gibson, sunrise is at 6:33 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:51 pm EDT.
Sunshine
The average sunshine in September in Port Gibson is 9.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Port Gibson in September?
What are the least humid months in Port Gibson?
What is the average humidity in September in Port Gibson?
What is the driest month in Port Gibson?
How many days does it rain in September in Port Gibson?
When it does not snow in Port Gibson?
Does it snow in Port Gibson in September?
What is the average length of the day in September in Port Gibson?
When are sunrise and sunset in September in Port Gibson?
How long on average sun shines in September in Port Gibson?
How high is the UV index in September in Port Gibson?
Average temperature in September
Port Gibson, NY
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Port Gibson, 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
Port Gibson, NY
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are January and February (11.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Port Gibson, NY
- Average humidity in September: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, August and September (77%).
Average rainfall in September
Port Gibson, NY
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is October (0.98").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in September
Port Gibson, NY
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are May and August (11.8 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Port Gibson, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Port Gibson, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Gibson, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Port Gibson, NY
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is February (13.4 days).
Average UV index in September
Port Gibson, NY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Port Gibson, NY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Port Gibson, 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).
Port Gibson, New York, USA
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