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 average high-temperature slightly decreases in September, shifting from a moderately hot 75.4°F (24.1°C) in August to a pleasant 68.9°F (20.5°C). The month of September records an average low-temperature of 50.9°F (10.5°C).Humidity
The average relative humidity in September in Norfolk is 79%.Rainfall
March and September are months with the least rain when the rain falls for 13.6 days and typically aggregates up to 2.01" (51mm) of rain.Snowfall
In Norfolk, New York, snow does not fall in June through September.Daylight
In Norfolk, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:36 pm. On the last day of September, in Norfolk, sunrise is at 6:57 am and sunset at 6:41 pm EDT.
Sunshine
In September, the average sunshine in Norfolk is 8.7h.UV index
The average daily maximum UV index in September in Norfolk is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the temperature in September in Norfolk?
What is the average humidity in September in Norfolk?
What is the driest month in Norfolk?
How much does it rain in Norfolk in September?
When it does not snow in Norfolk?
Does it snow in Norfolk in September?
How many hours of daylight does Norfolk have in September?
What time are sunrise and sunset in September in Norfolk?
How many hours of sunshine does Norfolk have in September?
What is the UV index intensity in September in Norfolk?
Average temperature in September
Norfolk, NY
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Norfolk, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Norfolk, NY
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Norfolk, NY
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Norfolk, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is August (3.03").
The driest months (with the least rainfall) are March and September (2.01").
Average rainfall days in September
Norfolk, NY
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Norfolk, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Norfolk, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Norfolk, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Norfolk, NY
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (15 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Norfolk, 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 and December (UV index 1).
Average cloud cover in September
Norfolk, NY
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Norfolk, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Norfolk, New York, USA
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