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 is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 80.8°F (27.1°C) in August to an agreeable 73°F (22.8°C). Wallkill, in September, experiences an average temperature of 53.2°F (11.8°C) at night.Humidity
In Wallkill, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 153.6 rainfall days, and 29.53" (750mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Wallkill, sunrise is at 6:23 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:39 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Wallkill have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Wallkill, NY
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Wallkill, NY
- Average pressure in September: 30.06"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
Wallkill, NY
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are February and March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Wallkill, NY
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Wallkill, NY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in September
Wallkill, NY
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Wallkill, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wallkill, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wallkill, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Wallkill, NY
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Wallkill, NY
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Wallkill, NY
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Wallkill, NY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Wallkill, New York, USA
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