September weather forecast
Plainview, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Plainview, New York, with an average temperature fluctuating between 64.8°F (18.2°C) and 72.5°F (22.5°C).

Temperature

Plainview, New York, in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 79.2°F (26.2°C) to a pleasant 72.5°F (22.5°C). September witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 64.8°F (18.2°C).

Humidity

The average relative humidity in September is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.8 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

During September, Plainview experiences an average high-temperature of 72.5°F (22.5°C) and a low-temperature of 64.8°F (18.2°C).

What is the average humidity in September in Plainview?

In September, the average relative humidity is 73%.

What is the driest month in Plainview?

September is the month with the least rainfall. Rain falls for 8.8 days and accumulates 0.35" (9mm) of precipitation.

How much does it rain in September?

In Plainview, in September, it is raining for 8.8 days, with typically 0.35" (9mm) of accumulated precipitation.

When it does not snow in Plainview?

April through November are months without snowfall.

What is the average length of the day in September?

In Plainview, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Plainview have in September?

The average sunshine duration in September is 9h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Plainview, NY

Average temperature in September - Plainview, NY
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 64.8°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Plainview, NY

Average pressure in September - Plainview, 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
Plainview, NY

Average wind speed in September - Plainview, NY
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in September
Plainview, NY

Average humidity in September - Plainview, NY
  • Average humidity in September: 73%

The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).

Average rainfall in September
Plainview, NY

Average rainfall in September - Plainview, NY
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in September
Plainview, NY

Average rainfall days in September - Plainview, NY
  • Average rainfall days in September: 8.8 days

The month with the highest number of rainy days is July (11.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in September
Plainview, NY

Average snowfall in September - Plainview, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Plainview, NY

Average snowfall days in September - Plainview, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.4 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
Plainview, NY

Average daylight in September / Average sunshine in September - Plainview, 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 0min

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 42min).

Average sunshine days in September
Plainview, NY

Average sunshine days in September - Plainview, NY
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is July (16.9 days).

Average UV index in September
Plainview, NY

Average UV index in September - Plainview, 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
Plainview, NY

Average cloud cover in September - Plainview, NY
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in September
Plainview, NY

Average visibility in September - Plainview, 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).

Plainview, New York, USA

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