September weather forecast
Johns, WV

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Johns, West Virginia, with an average temperature fluctuating between 77.9°F (25.5°C) and 56.5°F (13.6°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's 84°F (28.9°C) to a still moderately hot 77.9°F (25.5°C). In September, Johns's temperature tends to fall to an average low of 56.5°F (13.6°C) during the night.

Humidity

In September, the average relative humidity is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Johns, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm EDT.

Sunshine

The average sunshine in September is 8.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

What is the average September temperature?

In September, in Johns, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 56.5°F (13.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 93.2°F (34°C).

What is the average humidity in September in Johns?

In September, the average relative humidity is 78%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.77" (45mm) of precipitation.

How many days does it rain in September?

In Johns, in September, during 12.8 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.1h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. 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
Johns, WV

Average temperature in September - Johns, WV
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in September
Johns, WV

Average pressure in September - Johns, WV
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Johns, WV

Average wind speed in September - Johns, WV
  • Average wind speed in September: 4.3mph

The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in September
Johns, WV

Average humidity in September - Johns, WV
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).

Average rainfall in September
Johns, WV

Average rainfall in September - Johns, WV
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Johns, WV

Average rainfall days in September - Johns, WV
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (10.9 days).

Average snowfall in September
Johns, WV

Average snowfall in September - Johns, WV
  • Average snowfall in September: 0"

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

Average snowfall days in September
Johns, WV

Average snowfall days in September - Johns, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Johns, WV

Average daylight in September / Average sunshine in September - Johns, WV
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Johns, WV

Average sunshine days in September - Johns, WV
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in September
Johns, WV

Average UV index in September - Johns, WV
  • Average UV index in September: 4

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, November and December (UV index 2).

Average cloud cover in September
Johns, WV

Average cloud cover in September - Johns, WV
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Johns, WV

Average visibility in September - Johns, WV
  • Average visibility in September: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Johns, West Virginia, USA

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