Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 84.9°F (29.4°C) in August to a still warm 78.3°F (25.7°C). In Garrison, in September, the average low-temperature is a mild 57°F (13.9°C).Humidity
In September, the average relative humidity in Garrison is 76%.Rainfall
September is the month with the least rainfall in Garrison, Kentucky. Rain falls for 12.8 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In Garrison, snow does not fall in May through September.Daylight
The average length of the day in September in Garrison is 12h and 25min.On the first day of September, sunrise is at 7:02 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:16 pm EDT.
Sunshine
In Garrison, Kentucky, the average sunshine in September is 8.3h.UV index
In Garrison, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Garrison?
What is the average humidity in September in Garrison?
What is the driest month in Garrison?
How much does it rain in Garrison in September?
When it does not snow in Garrison?
Does it snow in Garrison in September?
How many hours of daylight does Garrison have in September?
When are sunrise and sunset in September in Garrison?
How many hours of sunshine does Garrison have in September?
What is the UV index reading in September in Garrison?
Average temperature in September
Garrison, KY
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Garrison, 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
Garrison, KY
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Garrison, KY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Garrison, KY
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Garrison, KY
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in September
Garrison, KY
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Garrison, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Garrison, 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 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Garrison, KY
- Average sunshine days in September: 15.7 days
The months with the most sunshine days are October and November (16.6 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Garrison, 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
Garrison, KY
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Garrison, KY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
Garrison, Kentucky, USA
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