September weather forecast
Chatham Hill, WV

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Weather in September

September, the first month of the autumn in Chatham Hill, is still a warm month, with an average temperature varying between 76.1°F (24.5°C) and 54.7°F (12.6°C).

Temperature

During the shift to September, Chatham Hill records a mild decrease in average high-temperature, moving from 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). In the month of September, Chatham Hill records a consistent average low-temperature of 54.7°F (12.6°C).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Chatham Hill, West Virginia, during September, the rain falls for 15.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, in Chatham Hill, there are 188.6 rainfall days, and 39.17" (995mm) of precipitation is accumulated.

Snowfall

In Chatham Hill, snow does not fall in June through September.

Daylight

In Chatham Hill, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:04 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Chatham Hill, 76.1°F (24.5°C) is the average high-temperature and 54.7°F (12.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How many days does it rain in September?

In September, in Chatham Hill, the rain falls for 15.4 days. Throughout September, 2.48" (63mm) of precipitation is accumulated.

When it does not snow?

In Chatham Hill, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Chatham Hill have in September?

In Chatham Hill, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:49 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:04 pm EDT.

How many hours of sunshine does Chatham Hill have in September?

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

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Chatham Hill, WV

Average temperature in September - Chatham Hill, WV
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in September: 54.7°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Chatham Hill, WV

Average pressure in September - Chatham Hill, WV
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Chatham Hill, WV

Average wind speed in September - Chatham Hill, WV
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Chatham Hill, WV

Average humidity in September - Chatham Hill, WV
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in September
Chatham Hill, WV

Average rainfall in September - Chatham Hill, WV
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in September
Chatham Hill, WV

Average rainfall days in September - Chatham Hill, WV
  • Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in September
Chatham Hill, WV

Average snowfall in September - Chatham Hill, WV
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Chatham Hill, WV

Average snowfall days in September - Chatham Hill, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Chatham Hill, WV

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in September
Chatham Hill, WV

Average sunshine days in September - Chatham Hill, WV
  • Average sunshine days in September: 12.2 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in September
Chatham Hill, WV

Average UV index in September - Chatham Hill, WV
  • Average UV index in September: 4

The months with the highest UV index are May and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Chatham Hill, WV

Average cloud cover in September - Chatham Hill, WV
  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in September
Chatham Hill, WV

Average visibility in September - Chatham Hill, WV
  • Average visibility in September: 5mi

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

Chatham Hill, West Virginia, USA

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