September weather forecast
Johnson, VT

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Weather in September

The first month of the autumn, September, is still a pleasant month in Johnson, Vermont, with an average temperature varying between 48°F (8.9°C) and 68.2°F (20.1°C).

Temperature

Johnson in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 75.2°F (24°C) in August to a pleasant 68.2°F (20.1°C). Johnson, during the nights of September, experiences an average temperature drop to a frosty 48°F (8.9°C).

Humidity

In Johnson, the average relative humidity in September is 81%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 2.2" (56mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of September in Johnson, sunrise is at 6:14 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:32 pm EDT.

Sunshine

In Johnson, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 3 in September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Johnson in September?

In September, the average high-temperature and low-temperature are 68.2°F (20.1°C) and 48°F (8.9°C) respectively.

What is the average humidity in September in Johnson?

In Johnson, Vermont, the average relative humidity in September is 81%.

What is the driest month in Johnson?

September is the month with the least rainfall in Johnson, Vermont. Rain falls for 13.4 days and accumulates 2.2" (56mm) of precipitation.

How much does it rain in Johnson in September?

In September, in Johnson, Vermont, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow in Johnson?

In Johnson, Vermont, snow does not fall in June through September.

Does it snow in Johnson 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 Johnson?

The average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Johnson?

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 7:26 pm. On the last day of the month, in Johnson, sunrise is at 6:48 am and sunset at 6:32 pm EDT.

How many hours of sunshine does Johnson have in September?

The average sunshine duration in September in Johnson, Vermont, is 8.3h.

What is the UV index reading in September in Johnson?

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Johnson, VT

Average temperature in September - Johnson, VT
  • Average high temperature in September: 68.2°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in September
Johnson, VT

Average pressure in September - Johnson, VT
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Johnson, VT

Average wind speed in September - Johnson, VT
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Johnson, VT

Average humidity in September - Johnson, VT
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (77%).

Average rainfall in September
Johnson, VT

Average rainfall in September - Johnson, VT
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in September
Johnson, VT

Average rainfall days in September - Johnson, VT
  • Average rainfall days in September: 13.4 days

The months with the highest number of rainy days are June and July (18.6 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in September
Johnson, VT

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

The month with the highest snowfall is January (14.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Johnson, VT

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

The month with the highest number of snowfall days is January (22.8 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, VT

Average daylight in September / Average sunshine in September - Johnson, VT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days in September
Johnson, VT

Average sunshine days in September - Johnson, VT
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (5.3 days).

Average UV index in September
Johnson, VT

Average UV index in September - Johnson, VT
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September
Johnson, VT

Average cloud cover in September - Johnson, VT
  • Average cloud cover in September: 40

The months with the most cloud cover are January and February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in September
Johnson, VT

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

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

Johnson, Vermont, USA

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