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
With the onset of September, Hauppauge's average high-temperature slightly adjusts, moderately receding from August's warm 78.4°F (25.8°C) to an agreeable 72.1°F (22.3°C). Hauppauge in September experiences a minor decline in temperature, with an average low of 65.3°F (18.5°C) at night.Humidity
In Hauppauge, the average relative humidity in September is 74%.Rainfall
In Hauppauge, New York, during September, the rain falls for 13.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Hauppauge, during the entire year, the rain falls for 153.2 days and collects up to 34.45" (875mm) of precipitation.Snowfall
In Hauppauge, snow does not fall in April through September.Daylight
The average length of the day in September in Hauppauge is 12h and 27min.On the first day of September, sunrise is at 6:20 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:36 pm EDT.
Sunshine
In September, the average sunshine in Hauppauge is 9.1h.UV index
The average daily maximum UV index in September in Hauppauge is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the temperature in September in Hauppauge?
What is the average humidity in September in Hauppauge?
How many days does it rain in September in Hauppauge?
When it does not snow in Hauppauge?
Does it snow in Hauppauge in September?
How many hours of daylight does Hauppauge have in September?
When is the sunrise / sunset in September in Hauppauge?
How many hours of sunshine does Hauppauge have in September?
What is the UV index reading in September in Hauppauge?
Average temperature in September
Hauppauge, NY
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Hauppauge, 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
Hauppauge, NY
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in September
Hauppauge, NY
- Average humidity in September: 74%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in September
Hauppauge, NY
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in September
Hauppauge, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Hauppauge, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Hauppauge, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 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
Hauppauge, 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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Hauppauge, NY
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in September
Hauppauge, NY
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Hauppauge, NY
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Hauppauge, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hauppauge, New York, USA
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