September weather forecast
Richwood, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Richwood, Kentucky, with an average temperature varying between 59°F (15°C) and 77.9°F (25.5°C).

Temperature

Richwood in September undergoes a slight reduction in the average high-temperature, shifting from August's 83.8°F (28.8°C) to a still warm 77.9°F (25.5°C). Richwood experiences an average low-temperature of 59°F (15°C) in the month of September.

Humidity

The months with the lowest humidity are August through October, with an average relative humidity of 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Richwood, snow does not fall in May through September.

Daylight

In Richwood, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:08 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Richwood, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the temperature in September in Richwood?

The high-temperature during September is 77.9°F (25.5°C) and the low-temperature is 59°F (15°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 91.4°F (33°C).

What is the least humid month in Richwood?

August through October, with an average relative humidity of 74%, are the least humid months in Richwood.

What is the average humidity in September in Richwood?

In Richwood, the average relative humidity in September is 74%.

What is the driest month in Richwood?

September is the month with the least rainfall in Richwood, Kentucky. Rain falls for 12.4 days and accumulates 1.34" (34mm) of precipitation.

How many days does it rain in September in Richwood?

In Richwood, Kentucky, in September, it is raining for 12.4 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow in Richwood?

May through September are months without snowfall in Richwood.

Does it snow in Richwood in September?

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

How many hours of daylight does Richwood have in September?

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

When are sunrise and sunset in September in Richwood?

On the first day of September in Richwood, Kentucky, sunrise is at 7:08 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

How long on average sun shines in September in Richwood?

The average sunshine duration in September in Richwood, Kentucky, is 8.3h.

How high is the UV index in September in Richwood?

In Richwood, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe 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
Richwood, KY

Average temperature in September - Richwood, KY
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in September
Richwood, KY

Average pressure in September - Richwood, KY
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Richwood, KY

Average wind speed in September - Richwood, KY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in September
Richwood, KY

Average humidity in September - Richwood, KY
  • Average humidity in September: 74%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in September
Richwood, KY

Average rainfall in September - Richwood, KY
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in September
Richwood, KY

Average rainfall days in September - Richwood, KY
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in September
Richwood, KY

Average snowfall in September - Richwood, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Richwood, KY

Average snowfall days in September - Richwood, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Richwood, KY

Average daylight in September / Average sunshine in September - Richwood, KY
  • 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 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in September
Richwood, KY

Average sunshine days in September - Richwood, KY
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and June (12 days).

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Average UV index in September
Richwood, KY

Average UV index in September - Richwood, KY
  • Average UV index in September: 5

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).

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Average cloud cover in September
Richwood, KY

Average cloud cover in September - Richwood, KY
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Richwood, KY

Average visibility in September - Richwood, KY
  • Average visibility in September: 6mi

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

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Richwood, Kentucky, USA

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