September weather forecast
Chrisman, IL

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Weather in September

September, the first month of the autumn in Chrisman, is still a warm month, with an average temperature varying between 77.2°F (25.1°C) and 58.6°F (14.8°C).

Temperature

Chrisman marks the arrival of September with an average high-temperature of a still warm 77.2°F (25.1°C), hardly different from August's 81.1°F (27.3°C). In September, Chrisman reports a consistent average low-temperature of 58.6°F (14.8°C) during the nights.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Chrisman, Illinois, in September, it is raining for 11 days, with typically 1.1" (28mm) of accumulated precipitation. In Chrisman, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Chrisman, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:34 pm CDT.

Sunshine

In Chrisman, the average sunshine in September is 9h.

UV index

In Chrisman, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Chrisman in September?

In September, in Chrisman, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

How many days does it rain in September in Chrisman?

In September, the rain falls for 11 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Chrisman have 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 6:19 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:34 pm CDT.

How many hours of sunshine does Chrisman have in September?

In Chrisman, the average sunshine duration in September is 9h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Chrisman, IL

Average temperature in September - Chrisman, IL
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°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 (21.7°F).

Average pressure in September
Chrisman, IL

Average pressure in September - Chrisman, IL
  • 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 (29.93"Hg).

Average wind speed in September
Chrisman, IL

Average wind speed in September - Chrisman, IL
  • Average wind speed in September: 6.9mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average humidity in September
Chrisman, IL

Average humidity in September - Chrisman, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Chrisman, IL

Average rainfall in September - Chrisman, IL
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in September
Chrisman, IL

Average rainfall days in September - Chrisman, IL
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in September
Chrisman, IL

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

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Chrisman, IL

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

The month with the highest number of snowfall days is January (6.9 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
Chrisman, IL

Average daylight in September / Average sunshine in September - Chrisman, 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 24min).

  • Average sunshine in September: 9h and 0min

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 0min).

Average sunshine days in September
Chrisman, IL

Average sunshine days in September - Chrisman, IL
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in September
Chrisman, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Chrisman, IL

Average cloud cover in September - Chrisman, IL
  • Average cloud cover in September: 31

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

Average visibility in September
Chrisman, IL

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

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

Chrisman, Illinois, USA

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