September weather forecastLewistown, KY
September
Weather in September
September, the first month of the autumn in Lewistown, is also a moderately hot month, with an average temperature fluctuating between 80.4°F (26.9°C) and 61.5°F (16.4°C).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a tropical 86.2°F (30.1°C) in August to a warm 80.4°F (26.9°C). The average low-temperature, in September, is an enjoyable 61.5°F (16.4°C).Humidity
In September, the average relative humidity in Lewistown is 73%.Rainfall
September is the month with the least rainfall in Lewistown. Rain falls for 13.7 days and accumulates 2.05" (52mm) of precipitation.Snowfall
In Lewistown, snow does not fall in May through September.Daylight
In Lewistown, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:22 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:35 pm CDT.
Sunshine
In Lewistown, the average sunshine in September is 9.2h.UV index
In Lewistown, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lewistown, KY
- Average high temperature in September: 80.4°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 (41.5°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in September
Lewistown, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Lewistown, KY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in September
Lewistown, KY
- Average humidity in September: 73%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Lewistown, KY
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Lewistown, KY
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Lewistown, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lewistown, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 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
Lewistown, 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 42min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Lewistown, KY
- Average sunshine days in September: 14 days
The months with the most sunshine days are October and November (18.3 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Lewistown, 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
Lewistown, KY
- Average cloud cover in September: 28
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in September
Lewistown, 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).
