September weather forecast
Johnson, NY

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Weather in September

September, the first month of the autumn in Johnson, is also an agreeable month, with an average temperature fluctuating between 52.9°F (11.6°C) and 73°F (22.8°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 80.1°F (26.7°C) to a pleasant 73°F (22.8°C). Throughout September, a steady low-temperature average of 52.9°F (11.6°C) is noted.

Humidity

In Johnson, New York, the average relative humidity in September is 79%.

Rainfall

In September, the rain falls for 12.1 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. In Johnson, New York, during the entire year, the rain falls for 153.7 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Johnson, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Johnson?

In Johnson, in September, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 52.9°F (11.6°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

How many days does it rain in September?

In Johnson, during September, the rain falls for 12.1 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow?

June through September are months without snowfall in Johnson.

Does it snow in September?

In Johnson, 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 is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How long on average sun shines in September?

In Johnson, the average sunshine duration in September is 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Johnson, NY

Average temperature in September - Johnson, NY
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in September: 52.9°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Johnson, NY

Average pressure in September - Johnson, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Johnson, NY

Average wind speed in September - Johnson, NY
  • Average wind speed in September: 5.1mph

The windiest months (with the highest average wind speed) are January, February and March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Johnson, NY

Average humidity in September - Johnson, NY
  • Average humidity in September: 79%

The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in September
Johnson, NY

Average rainfall in September - Johnson, NY
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in September
Johnson, NY

Average rainfall days in September - Johnson, NY
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in September
Johnson, NY

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

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Johnson, NY

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

The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Johnson, 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 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in September
Johnson, NY

Average sunshine days in September - Johnson, NY
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (11 days).

Average UV index in September
Johnson, NY

Average UV index in September - Johnson, NY
  • Average UV index in September: 4

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, November and December (UV index 2).

Average cloud cover in September
Johnson, NY

Average cloud cover in September - Johnson, NY
  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in September
Johnson, NY

Average visibility in September - Johnson, NY
  • Average visibility in September: 5mi

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

Johnson, New York, USA

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