September weather forecast
North Hooper, IL

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Weather in September

September, the first month of the autumn in North Hooper, is also a moderately hot month, with an average temperature fluctuating between 75.2°F (24°C) and 57°F (13.9°C).

Temperature

North Hooper's weather in September, with an average high-temperature of a still warm 75.2°F (24°C), subtly shifts from August's 79.5°F (26.4°C). In North Hooper, an average temperature of 57°F (13.9°C) is noted during September nights.

Humidity

In North Hooper, Illinois, the average relative humidity in September is 78%.

Rainfall

In North Hooper, in September, during 10.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in North Hooper, there are 136.7 rainfall days, and 19.72" (501mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September in North Hooper is 12h and 27min.
On the first day of September, sunrise is at 6:17 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What is the temperature in September in North Hooper?

The average high-temperature, in September, in North Hooper, is 75.2°F (24°C), while the average low-temperature is 57°F (13.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in North Hooper?

In September, the average relative humidity is 78%.

How many days does it rain in September in North Hooper?

In North Hooper, in September, during 10.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in North Hooper?

In North Hooper, Illinois, snow does not fall in May through October.

How many hours of daylight does North Hooper have in September?

In September, the average day length in North Hooper is 12h and 27min.

When are sunrise and sunset in September in North Hooper?

On the first day of September in North Hooper, Illinois, sunrise is at 6:17 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:33 pm CDT.

How long on average sun shines in September in North Hooper?

In North Hooper, Illinois, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September in North Hooper?

In September, the average daily maximum UV index in North Hooper 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
North Hooper, IL

Average temperature in September - North Hooper, IL
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 57°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in September
North Hooper, IL

Average pressure in September - North Hooper, IL
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
North Hooper, IL

Average wind speed in September - North Hooper, IL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in September
North Hooper, IL

Average humidity in September - North Hooper, IL
  • Average humidity in September: 78%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
North Hooper, IL

Average rainfall in September - North Hooper, IL
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in September
North Hooper, IL

Average rainfall days in September - North Hooper, IL
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in September
North Hooper, IL

Average snowfall in September - North Hooper, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
North Hooper, IL

Average snowfall days in September - North Hooper, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.5 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
North Hooper, IL

Average daylight in September / Average sunshine in September - North Hooper, IL
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in September
North Hooper, IL

Average sunshine days in September - North Hooper, IL
  • Average sunshine days in September: 17 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.1 days).

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Average UV index in September
North Hooper, IL

Average UV index in September - North Hooper, IL
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
North Hooper, IL

Average cloud cover in September - North Hooper, IL
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in September
North Hooper, IL

Average visibility in September - North Hooper, 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).

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North Hooper, Illinois, USA

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