September weather forecastHelechawa, KY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Helechawa, Kentucky, with an average temperature fluctuating between 79.5°F (26.4°C) and 57.4°F (14.1°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's 85.6°F (29.8°C) to a still warm 79.5°F (26.4°C). With the onset of night in September, Helechawa reveals a significant decrease in temperature, averaging at a refreshing 57.4°F (14.1°C).Humidity
In Helechawa, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 1.93" (49mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 7:04 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:17 pm EDT.
Sunshine
In Helechawa, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Helechawa, KY
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (86.7°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 (64.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Helechawa, 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
Helechawa, KY
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Helechawa, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and November (74%).
Average rainfall in September
Helechawa, KY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Helechawa, KY
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in September
Helechawa, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Helechawa, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Helechawa, KY
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 18min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Helechawa, KY
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is February (9 days).
Average UV index in September
Helechawa, KY
- Average UV index in September: 4
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
Helechawa, KY
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Helechawa, KY
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
