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 average high-temperature shows a slight dip in September, from August's 84.2°F (29°C) to a still moderately hot 78.3°F (25.7°C). During September, Thomson experiences a consistent low-temperature average of 58.5°F (14.7°C).Humidity
In Thomson, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 2.17" (55mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:06 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:20 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September in Thomson, Kentucky, is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Thomson have in September?
When is the sunrise / sunset in September in Thomson?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Thomson, 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 (39°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Thomson, 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
Thomson, KY
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Thomson, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Thomson, KY
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Thomson, KY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Thomson, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Thomson, 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 May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thomson, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Thomson, KY
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Thomson, 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
Thomson, KY
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Thomson, KY
- Average visibility in September: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Thomson, Kentucky, USA
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