September weather forecast
Martha, KY

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Weather in September

September, the first month of the autumn in Martha, is still a warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 57.4°F (14.1°C).

Temperature

Martha's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 85.8°F (29.9°C) in August to a still moderately hot 79.3°F (26.3°C). Martha documents a substantial deviation from daytime highs with a consistent low-temperature of 57.4°F (14.1°C) during September nights.

Humidity

The average relative humidity in September is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 7:02 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

In Martha, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 suggests this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In September, the average high-temperature and low-temperature are 79.3°F (26.3°C) and 57.4°F (14.1°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 96.8°F (36°C).

What is the average humidity in September in Martha?

In September, the average relative humidity is 76%.

What is the driest month in Martha?

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.77" (45mm) of precipitation.

How much does it rain in September?

In Martha, in September, during 13 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow?

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

Does it snow in September?

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

What is the average length of the day in September?

In Martha, Kentucky, the average day length in September is 12h and 25min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:15 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.3h.

What is the UV index reading in September?

The average daily maximum UV index in September in Martha is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Martha, KY

Average temperature in September - Martha, KY
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in September
Martha, KY

Average pressure in September - Martha, KY
  • Average pressure in September: 30.05"Hg

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

Average wind speed in September
Martha, KY

Average wind speed in September - Martha, KY
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Martha, KY

Average humidity in September - Martha, KY
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (74%).

Average rainfall in September
Martha, KY

Average rainfall in September - Martha, KY
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Martha, KY

Average rainfall days in September - Martha, KY
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in September
Martha, KY

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

The month with the highest snowfall is February (3.78").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Martha, KY

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

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Martha, KY
  • 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Martha, KY

Average sunshine days in September - Martha, KY
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in September
Martha, KY

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

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

Average cloud cover in September
Martha, KY

Average cloud cover in September - Martha, KY
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Martha, KY

Average visibility in September - Martha, KY
  • Average visibility in September: 5mi

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

Martha, Kentucky, USA

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