September weather forecast
Cynthiana, KY

Share

Weather in September

September, the first month of the autumn in Cynthiana, is still a warm month, with an average temperature ranging between min 58.6°F (14.8°C) and max 78.3°F (25.7°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 84.6°F (29.2°C) in August to a still warm 78.3°F (25.7°C). Cynthiana's temperature in September lowers to a consistent average of 58.6°F (14.8°C) during the nights.

Humidity

In Cynthiana, the average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Cynthiana, 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 September, sunrise is at 7:07 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:21 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in Cynthiana, records 78.3°F (25.7°C), while the low-temperature is 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.34" (34mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 12.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Cynthiana have in September?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:07 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:21 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.3h.

How high is the UV index in September in Cynthiana?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cynthiana, KY

Average temperature in September - Cynthiana, KY
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in September
Cynthiana, KY

Average pressure in September - Cynthiana, KY
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Cynthiana, KY

Average wind speed in September - Cynthiana, KY
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Cynthiana, KY

Average humidity in September - Cynthiana, KY
  • Average humidity in September: 75%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).

Average rainfall in September
Cynthiana, KY

Average rainfall in September - Cynthiana, KY
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in September
Cynthiana, KY

Average rainfall days in September - Cynthiana, KY
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Cynthiana, KY

Average snowfall in September - Cynthiana, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Cynthiana, KY

Average snowfall days in September - Cynthiana, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 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
Cynthiana, KY

Average daylight in September / Average sunshine in September - Cynthiana, 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 months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Cynthiana, KY

Average sunshine days in September - Cynthiana, KY
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is February (11.8 days).

Average UV index in September
Cynthiana, KY

Average UV index in September - Cynthiana, 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
Cynthiana, KY

Average cloud cover in September - Cynthiana, KY
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Cynthiana, KY

Average visibility in September - Cynthiana, KY
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).

Cynthiana, Kentucky, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location