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
In September, the average high-temperature marginally decreases from a moderately hot 79.3°F (26.3°C) in August to an agreeable 71.4°F (21.9°C). Green Island records a steady low-temperature average of 51.3°F (10.7°C) during September.Humidity
In Green Island, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Green Island, New York, snow does not fall in June through September.Daylight
In September, the average length of the day in Green Island is 12h and 29min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:28 pm. On the last day of September, in Green Island, New York, sunrise is at 6:51 am and sunset at 6:37 pm EDT.
Sunshine
In Green Island, the average sunshine in September is 9.1h.UV index
In Green Island, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the usual temperature for Green Island in September?
What is the average humidity in September in Green Island?
What is the driest month in Green Island?
How many days does it rain in September in Green Island?
When it does not snow in Green Island?
Does it snow in Green Island in September?
How many hours of daylight does Green Island have in September?
When are sunrise and sunset in September in Green Island?
How long on average sun shines in September in Green Island?
How high is the UV index in September in Green Island?
Average temperature in September
Green Island, NY
- Average high temperature in September: 71.4°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 (28.8°F).
- Average low temperature in September: 51.3°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
Green Island, 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 (29.92"Hg).
Average wind speed in September
Green Island, NY
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Green Island, NY
- Average humidity in September: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Green Island, NY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Green Island, NY
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Green Island, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Green Island, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Green Island, 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: 3h and 48min).
Average sunshine days in September
Green Island, NY
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in September
Green Island, 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
Green Island, NY
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Green Island, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, August and September (5mi).
Green Island, New York, USA
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