September weather forecast
Girard, IL

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Weather in September

September, the first month of the autumn in Girard, is still a warm month, with an average temperature fluctuating between 77.5°F (25.3°C) and 59.2°F (15.1°C).

Temperature

Girard's September showcases an average high-temperature of a still moderately hot 77.5°F (25.3°C), hardly distinct from August's 82°F (27.8°C). An average minimum temperature of 59.2°F (15.1°C) marks the month of September.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Girard, Illinois, in September, it is raining for 12.5 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 143.6 rainfall days, and 23.74" (603mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In Girard, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, a regular UV index of 5 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What is the temperature in September?

During September, Girard experiences an average high-temperature of 77.5°F (25.3°C) and a low-temperature of 59.2°F (15.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September in Girard is 74%.

How much does it rain in September?

In Girard, in September, it is raining for 12.5 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Girard?

May through October are months without snowfall.

How many hours of daylight does Girard have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In Girard, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents 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
Girard, IL

Average temperature in September - Girard, IL
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in September
Girard, IL

Average pressure in September - Girard, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Girard, IL

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in September
Girard, IL

Average humidity in September - Girard, IL
  • Average humidity in September: 74%

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

Average rainfall in September
Girard, IL

Average rainfall in September - Girard, IL
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are February and December (1.26").

Average rainfall days in September
Girard, IL

Average rainfall days in September - Girard, IL
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in September
Girard, IL

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

The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Girard, IL

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

The month with the highest number of snowfall days is January (8 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
Girard, IL

Average daylight in September / Average sunshine in September - Girard, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Girard, IL

Average sunshine days in September - Girard, IL
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Girard, IL

Average UV index in September - Girard, 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
Girard, IL

Average cloud cover in September - Girard, IL
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in September
Girard, IL

Average visibility in September - Girard, 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).

Girard, Illinois, USA

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