September weather forecast
Panama, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Panama, Illinois, with an average temperature varying between 59.2°F (15.1°C) and 77.7°F (25.4°C).

Temperature

The commencement of September records an average high-temperature of a still warm 77.7°F (25.4°C), barely varying from August's 82.6°F (28.1°C). Panama, during the nights of September, experiences an average temperature drop to a mild 59.2°F (15.1°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Panama, in September, during 11.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Panama, during the entire year, the rain falls for 138.5 days and collects up to 24.33" (618mm) of precipitation.

Snowfall

In Panama, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:28 pm. On the last day of September, in Panama, sunrise is at 6:53 am and sunset at 6:41 pm CDT.

Sunshine

In Panama, Illinois, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Jul 28, 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 during September is 77.7°F (25.4°C) and the low-temperature is 59.2°F (15.1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Panama, in September, during 11.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:27 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:41 pm CDT.

How long on average sun shines in September?

In Panama, the average sunshine duration in September is 9.3h.

How high is the UV index in September?

In Panama, the average daily maximum UV index in September 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
Panama, IL

Average temperature in September - Panama, IL
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in September
Panama, IL

Average pressure in September - Panama, IL
  • 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 (29.92"Hg).

Average wind speed in September
Panama, IL

Average wind speed in September - Panama, IL
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in September
Panama, IL

Average humidity in September - Panama, IL
  • Average humidity in September: 75%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Panama, IL

Average rainfall in September - Panama, IL
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is February (1.34").

Average rainfall days in September
Panama, IL

Average rainfall days in September - Panama, IL
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7 days).

Average snowfall in September
Panama, IL

Average snowfall in September - Panama, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Panama, IL

Average snowfall days in September - Panama, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.2 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
Panama, IL

Average daylight in September / Average sunshine in September - Panama, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

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

Average sunshine days in September
Panama, IL

Average sunshine days in September - Panama, IL
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in September
Panama, IL

Average UV index in September - Panama, IL
  • Average UV index in September: 5

The months with the highest UV index are 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
Panama, IL

Average cloud cover in September - Panama, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in September
Panama, IL

Average visibility in September - Panama, IL
  • Average visibility in September: 6mi

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

Panama, Illinois, USA

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