September weather forecast
Mount Olive, IL

Weather in September

September, the first month of the autumn in Mount Olive, is also a moderately hot month, with an average temperature ranging between min 59.4°F (15.2°C) and max 77.9°F (25.5°C).

Temperature

In Mount Olive, the average high-temperature in September is practically the same as in August - a still moderately hot 77.9°F (25.5°C). In September, in Mount Olive, the average low-temperature is 59.4°F (15.2°C).

Humidity

The average relative humidity in September in Mount Olive is 75%.

Rainfall

In Mount Olive, in September, during 10.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Mount Olive, during the entire year, the rain falls for 121.4 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

April through October are months without snowfall in Mount Olive.

Daylight

In September, the average length of the day in Mount Olive is 12h and 26min.
On the first day of September in Mount Olive, sunrise is at 6:27 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

Sunshine

In Mount Olive, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Mount Olive?

In Mount Olive, in September, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 59.4°F (15.2°C). in August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What is the average humidity in September in Mount Olive?

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

How many days does it rain in September in Mount Olive?

In Mount Olive, Illinois, in September, during 10.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When it does not snow in Mount Olive?

In Mount Olive, Illinois, snow does not fall in April through October.

How many hours of daylight does Mount Olive have in September?

In September, the average day length in Mount Olive is 12h and 26min.

When are sunrise and sunset in September in Mount Olive?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

How long on average sun shines in September in Mount Olive?

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

How high is the UV index in September in Mount Olive?

In Mount Olive, the average daily maximum UV index in September is 5. A UV Index estimate 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mount Olive, IL

Average temperature in September - Mount Olive, IL
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in September
Mount Olive, IL

Average pressure in September - Mount Olive, IL
  • Average pressure in September: 30.02"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).

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Average wind speed in September
Mount Olive, IL

Average wind speed in September - Mount Olive, IL
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in September
Mount Olive, IL

Average humidity in September - Mount Olive, IL
  • Average humidity in September: 75%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Mount Olive, IL

Average rainfall in September - Mount Olive, IL
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in September
Mount Olive, IL

Average rainfall days in September - Mount Olive, IL
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in September
Mount Olive, IL

Average snowfall in September - Mount Olive, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Mount Olive, IL

Average snowfall days in September - Mount Olive, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 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
Mount Olive, IL

Average daylight in September / Average sunshine in September - Mount Olive, IL
  • Average daylight in September: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in September: 9h and 18min

The months with the most sunshine are June and July (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
Mount Olive, IL

Average sunshine days in September - Mount Olive, IL
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in September
Mount Olive, IL

Average UV index in September - Mount Olive, 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).

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Average cloud cover in September
Mount Olive, IL

Average cloud cover in September - Mount Olive, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

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Average visibility in September
Mount Olive, IL

Average visibility in September - Mount Olive, IL
  • Average visibility in September: 6mi

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

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