September weather forecast and climate
Fairmont, West VA

What is the temperature in September in Fairmont?

In September, in Fairmont, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 53.1°F (11.7°C).

How many days does it rain in September in Fairmont?

In Fairmont, in September, it is raining for 10 days, with typically 3.5" (89.2mm) of accumulated precipitation.
Average temperature in September - Fairmont, West VA
  • Average high temperature in September: 24.4°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 11.7°C

The month with the highest average low temperature is July (16.1°C).
The coldest month (with the lowest average low temperature) is January (-6.7°C).

Average rainfall in September - Fairmont, West VA
  • Average rainfall in September: 89.2mm

The wettest month (with the highest rainfall) is July (125mm).
The driest month (with the lowest rainfall) is February (74.9mm).

Average rainfall days in September - Fairmont, West VA
  • Average rainfall days in September: 10 days

Months with the highest number of rainy days are January and December (17 days).
The month with the lowest number of rainy days is September (10 days).

Average daylight in September / Average sunshine in September - Fairmont, West VA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 6h

The month with most sunshine is June (Average sunshine: 8h).
Months with least sunshine are January, November and December (Average sunshine: 3).

Average UV index in September - Fairmont, West VA
  • Average UV index in September: 7

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).

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