September weather forecast
Harris, NY

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Weather in September

September, the first month of the autumn in Harris, is also an agreeable month, with an average temperature ranging between min 50.9°F (10.5°C) and max 71.2°F (21.8°C).

Temperature

A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.2°F (21.8°C). The nighttime temperature dips to a fresh 50.9°F (10.5°C) on average during September.

Humidity

In Harris, the average relative humidity in September is 80%.

Rainfall

In Harris, in September, it is raining for 11.9 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 153.7 rainfall days, and 26.73" (679mm) of precipitation is accumulated.

Snowfall

In Harris, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In Harris, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 3 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What are September temperatures?

In Harris, 71.2°F (21.8°C) is the average high-temperature and 50.9°F (10.5°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 80%.

How many days does it rain in September?

In Harris, in September, during 11.9 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall in Harris.

Does it snow in September?

In Harris, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length is 12h and 28min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Harris have in September?

In Harris, the average sunshine duration in September is 8.5h.

How high is the UV index in September?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Harris, NY

Average temperature in September - Harris, NY
  • Average high temperature in September: 71.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in September
Harris, NY

Average pressure in September - Harris, 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
Harris, NY

Average wind speed in September - Harris, NY
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Harris, NY

Average humidity in September - Harris, NY
  • Average humidity in September: 80%

The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).

Average rainfall in September
Harris, NY

Average rainfall in September - Harris, NY
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").

Average rainfall days in September
Harris, NY

Average rainfall days in September - Harris, NY
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in September
Harris, NY

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

The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Harris, NY

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

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Harris, NY

Average daylight in September / Average sunshine in September - Harris, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in September
Harris, NY

Average sunshine days in September - Harris, NY
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in September
Harris, NY

Average UV index in September - Harris, NY
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Harris, NY

Average cloud cover in September - Harris, NY
  • Average cloud cover in September: 42

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in September
Harris, NY

Average visibility in September - Harris, NY
  • Average visibility in September: 4mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).

Harris, New York, USA

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