September weather forecast
Monticello, KY

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Monticello, Kentucky, with an average temperature varying between 79.7°F (26.5°C) and 59.2°F (15.1°C).

Temperature

The move into September indicates a slight reduction in the average high-temperature, down from August's 85.3°F (29.6°C) to a still warm 79.7°F (26.5°C). Throughout September, the temperature in Monticello tends to fall to a consistent average low of 59.2°F (15.1°C).

Humidity

In Monticello, Kentucky, the average relative humidity in September is 77%.

Rainfall

The month with the least rainfall in Monticello is September, when the rain falls for 13.6 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

In Monticello, snow does not fall in May through September.

Daylight

In Monticello, Kentucky, the average length of the day in September is 12h and 24min.
On the first day of September in Monticello, sunrise is at 7:10 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:23 pm EDT.

Sunshine

In Monticello, the average sunshine in September is 8.3h.

UV index

In Monticello, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What is the temperature in September in Monticello?

The average high-temperature, in September, in Monticello, is 79.7°F (26.5°C), while the average low-temperature is 59.2°F (15.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 95°F (35°C).

What is the average humidity in September in Monticello?

In Monticello, Kentucky, the average relative humidity in September is 77%.

What is the driest month in Monticello?

The month with the least rainfall in Monticello, Kentucky, is September, when the rain falls for 13.6 days and typically collects 2.05" (52mm) of precipitation.

How many days does it rain in September in Monticello?

In Monticello, in September, during 13.6 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow in Monticello?

In Monticello, Kentucky, snow does not fall in May through September.

Does it snow in Monticello in September?

In Monticello, Kentucky, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Monticello?

In Monticello, Kentucky, the average day length in September is 12h and 24min.

What time are sunrise and sunset in September in Monticello?

On the first day of September in Monticello, Kentucky, sunrise is at 7:10 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:23 pm EDT.

How long on average sun shines in September in Monticello?

The average sunshine duration in September is 8.3h.

What is the UV index intensity in September in Monticello?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Monticello, KY

Average temperature in September - Monticello, KY
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41.9°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in September
Monticello, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Monticello, KY

Average wind speed in September - Monticello, KY
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Monticello, KY

Average humidity in September - Monticello, KY
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, August, October and November (76%).

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Average rainfall in September
Monticello, KY

Average rainfall in September - Monticello, KY
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in September
Monticello, KY

Average rainfall days in September - Monticello, KY
  • Average rainfall days in September: 13.6 days

The months with the highest number of rainy days are May and July (17.8 days).
The month with the least rainy days is November (10.8 days).

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Average snowfall in September
Monticello, KY

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

The month with the highest snowfall is February (2.95").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Monticello, KY

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Monticello, KY

Average daylight in September / Average sunshine in September - Monticello, KY
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in September
Monticello, KY

Average sunshine days in September - Monticello, KY
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index in September
Monticello, KY

Average UV index in September - Monticello, 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 and December (UV index 2).

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Average cloud cover in September
Monticello, KY

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

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 31).

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Average visibility in September
Monticello, KY

Average visibility in September - Monticello, KY
  • Average visibility in September: 5mi

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

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Monticello, Kentucky, USA

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