September weather forecast
Hudson, IL

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Weather in September

September, the first month of the autumn in Hudson, is still a warm month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57.2°F (14°C).

Temperature

The advent of September brings an average high-temperature of a still warm 75.7°F (24.3°C), almost identical to the preceding month. During September, the temperature is averaged to a low of 57.2°F (14°C) at night.

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 12.2 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Hudson, during the entire year, the rain falls for 140.6 days and collects up to 22.44" (570mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Hudson, Illinois, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

Hudson in September has an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 57.2°F (14°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in September?

In Hudson, in September, during 12.2 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow?

In Hudson, snow does not fall in May through September.

Does it snow in September?

In Hudson, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Hudson have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.8h.

How high is the UV index in September?

In Hudson, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes 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
Hudson, IL

Average temperature in September - Hudson, IL
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Hudson, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Hudson, IL

Average wind speed in September - Hudson, IL
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September
Hudson, IL

Average humidity in September - Hudson, IL
  • Average humidity in September: 77%

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

Average rainfall in September
Hudson, IL

Average rainfall in September - Hudson, IL
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in September
Hudson, IL

Average rainfall days in September - Hudson, IL
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in September
Hudson, IL

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

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Hudson, IL

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

The month with the highest number of snowfall days is January (11.5 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
Hudson, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in September
Hudson, IL

Average sunshine days in September - Hudson, IL
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.7 days).

Average UV index in September
Hudson, IL

Average UV index in September - Hudson, 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
Hudson, IL

Average cloud cover in September - Hudson, IL
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in September
Hudson, IL

Average visibility in September - Hudson, 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).

Hudson, Illinois, USA

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