September weather forecastMartha, KY
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 24min
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 18min
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: 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: 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: 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: 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).
