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
A minor decrease in the average high-temperature is observed during September, shifting from 82.9°F (28.3°C) in August to a still moderately hot 75°F (23.9°C). Pearl River records an average nighttime low-temperature of 57.9°F (14.4°C) throughout September.Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.54" (39mm) of precipitation.Snowfall
In Pearl River, snow does not fall in May through September.Daylight
In Pearl River, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Around midday, solar radiation is most harmful; hence, exposure should be limited. Enhance your sun protection with tightly woven, yet airy clothing.
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?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Pearl River?
Average temperature in September
Pearl River, NY
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Pearl River, 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
Pearl River, NY
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Pearl River, NY
- Average humidity in September: 75%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Pearl River, NY
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Pearl River, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Pearl River, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Pearl River, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pearl River, 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 18min).
- 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
Pearl River, NY
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Pearl River, NY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (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
Pearl River, NY
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Pearl River, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
Pearl River, New York, USA
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