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 subtly indicates a reduction in the average high-temperature, down to a moderately hot 79.5°F (26.4°C) from August's hot 86°F (30°C). In Saint Matthews, September nights witness a steady temperature drop to a mild 60.1°F (15.6°C).Humidity
In Saint Matthews, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 0.43" (11mm) of precipitation.Snowfall
In Saint Matthews, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:11 pm. On the last day of September, in Saint Matthews, Kentucky, sunrise is at 7:38 am and sunset at 7:26 pm EDT.
Sunshine
In Saint Matthews, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Saint Matthews?
What is the average humidity in September in Saint Matthews?
What is the driest month in Saint Matthews?
How much does it rain in Saint Matthews in September?
When it does not snow in Saint Matthews?
What is the average length of the day in September in Saint Matthews?
When is the sunrise / sunset in September in Saint Matthews?
How many hours of sunshine does Saint Matthews have in September?
What is the UV index reading in September in Saint Matthews?
Average temperature in September
Saint Matthews, KY
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in September
Saint Matthews, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Saint Matthews, KY
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Saint Matthews, KY
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Saint Matthews, KY
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Saint Matthews, KY
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Saint Matthews, KY
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Saint Matthews, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Saint Matthews, 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 36min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Saint Matthews, KY
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Saint Matthews, 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, November and December (UV index 2).
Average cloud cover in September
Saint Matthews, KY
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Saint Matthews, KY
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
Saint Matthews, Kentucky, USA
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