September weather forecastCrompond, NY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Crompond, New York, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 74.5°F (23.6°C).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 82°F (27.8°C) to a still warm 74.5°F (23.6°C). In the month of September, Crompond records a consistent average low-temperature of 56.3°F (13.5°C).Humidity
In September, the average relative humidity in Crompond is 77%.Rainfall
In Crompond, during September, the rain falls for 12.5 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Crompond, there are 148.4 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
In Crompond, snow does not fall in June through September.Daylight
The average length of the day in September in Crompond is 12h and 28min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:38 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Crompond, NY
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Crompond, 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
Crompond, NY
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Crompond, NY
- Average humidity in September: 77%
The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Crompond, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is February (1.81").
Average rainfall days in September
Crompond, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Crompond, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Crompond, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Crompond, NY
- Average daylight in September: 12h and 30min
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 48min
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 36min).
Average sunshine days in September
Crompond, NY
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Crompond, NY
- Average UV index in September: 4
The months with the highest UV index are June 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
Crompond, NY
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Crompond, 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).
