September weather forecastGlencairn, KY
September
Weather in September
September, the first month of the autumn in Glencairn, is also a moderately hot month, with an average temperature varying between 78.6°F (25.9°C) and 57.9°F (14.4°C).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 84.7°F (29.3°C) to a still warm 78.6°F (25.9°C). Glencairn records an average low of 57.9°F (14.4°C) throughout the nights in September.Humidity
The average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.09" (53mm) of precipitation.Snowfall
In Glencairn, 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 7:05 am and sunset at 8:03 pm. On the last day of September, in Glencairn, sunrise is at 7:30 am and sunset at 7:18 pm EDT.
Sunshine
In Glencairn, the average sunshine in September is 8.3h.UV index
In Glencairn, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Glencairn, KY
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Glencairn, KY
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Glencairn, KY
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Glencairn, 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 (75%).
Average rainfall in September
Glencairn, KY
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in September
Glencairn, KY
- Average rainfall days in September: 13 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in September
Glencairn, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Glencairn, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glencairn, 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 month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Glencairn, KY
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Glencairn, 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, November and December (UV index 2).
Average cloud cover in September
Glencairn, KY
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Glencairn, 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).
