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 commences, the average high-temperature subtly reduces, transitioning from a warm 75.7°F (24.3°C) in August to a pleasant 70.3°F (21.3°C). September witnesses an average nighttime temperature of 56.1°F (13.4°C).Humidity
September is the least humid month, with an average relative humidity of 77%.Rainfall
In Irving, during September, the rain falls for 15 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 168.1 rainfall days, and 26.54" (674mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:59 pm EDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Irving, New York, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September in Irving?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Irving, NY
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Irving, 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 (29.93"Hg).
Average wind speed in September
Irving, NY
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Irving, NY
- Average humidity in September: 77%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Irving, NY
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in September
Irving, NY
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Irving, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Irving, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Irving, 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 August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Irving, NY
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in September
Irving, 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
Irving, NY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Irving, NY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Irving, New York, USA
Weather forecast for your location
2. Allow the app to use your location