September weather forecast
Hopedale, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Hopedale, Illinois, with an average temperature fluctuating between 57.9°F (14.4°C) and 76.5°F (24.7°C).

Temperature

The onset of September brings with it an average high-temperature of a still moderately hot 76.5°F (24.7°C), showing a negligible variation from the month before. In Hopedale, an average nighttime temperature of 57.9°F (14.4°C) is expected during September.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Hopedale, during September, the rain falls for 10.3 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 131.4 rainfall days, and 20.08" (510mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Hopedale, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:40 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Hopedale, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

During September, Hopedale experiences an average high-temperature of 76.5°F (24.7°C) and a low-temperature of 57.9°F (14.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September?

In Hopedale, the average relative humidity in September is 76%.

How much does it rain in September?

In September, the rain falls for 10.3 days. Throughout September, 1.57" (40mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Hopedale have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm CDT.

How many hours of sunshine does Hopedale have in September?

In Hopedale, the average sunshine duration in September is 9.1h.

How high is the UV index in September?

In Hopedale, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from 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
Hopedale, IL

Average temperature in September - Hopedale, IL
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in September
Hopedale, IL

Average pressure in September - Hopedale, 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 (29.91"Hg).

Average wind speed in September
Hopedale, IL

Average wind speed in September - Hopedale, IL
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in September
Hopedale, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Hopedale, IL

Average rainfall in September - Hopedale, IL
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in September
Hopedale, IL

Average rainfall days in September - Hopedale, IL
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in September
Hopedale, IL

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

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Hopedale, IL

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

The month with the highest number of snowfall days is January (8.4 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
Hopedale, IL

Average daylight in September / Average sunshine in September - Hopedale, 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: 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 0min).

Average sunshine days in September
Hopedale, IL

Average sunshine days in September - Hopedale, IL
  • Average sunshine days in September: 18.8 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in September
Hopedale, IL

Average UV index in September - Hopedale, 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
Hopedale, IL

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in September
Hopedale, IL

Average visibility in September - Hopedale, 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).

Hopedale, Illinois, USA

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