October weather forecast
Janesville, IA

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Weather in October

October, like September, is another mild autumn month in Janesville, Iowa, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 43°F (6.1°C).

Temperature

October's arrival sees a clear drop in the average high-temperature, decreasing from September's agreeable 72.9°F (22.7°C) to a mild 58.1°F (14.5°C). Janesville's average low-temperature in October is measured at a chilly 43°F (6.1°C).

Humidity

The least humid month is October, with an average relative humidity of 72%.

Rainfall

In Janesville, Iowa, during October, the rain falls for 10.7 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Janesville, during the entire year, the rain falls for 138.7 days and collects up to 28.78" (731mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.2 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 43.6 snowfall days, and 19.25" (489mm) of snow is accumulated.

Daylight

The average length of the day in October in Janesville is 11h and 2min.
On the first day of October in Janesville, Iowa, sunrise is at 7:07 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 6:03 pm CDT.

Sunshine

In Janesville, the average sunshine in October is 5.4h.

UV index

In Janesville, Iowa, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 2 in October, converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Janesville in October?

The high-temperature, in October, in Janesville, records 58.1°F (14.5°C), while the low-temperature is 43°F (6.1°C).

What is the least humid month in Janesville?

The least humid month in Janesville, Iowa, is October, with an average relative humidity of 72%.

What is the average humidity in October in Janesville?

In Janesville, Iowa, the average relative humidity in October is 72%.

How many days does it rain in October in Janesville?

In Janesville, in October, it is raining for 10.7 days, with typically 2.68" (68mm) of accumulated precipitation.

When does it start to snow in Janesville?

October is the first month it typically snows. Throughout October, in the average 1.2 snowfall days, it receives 0.24" (6mm) of snow.

How many hours of daylight does Janesville have in October?

In October, the average day length in Janesville, Iowa, is 11h and 2min.

When are sunrise and sunset in October in Janesville?

In October, on the first day of the month, sunrise is at 7:07 am and sunset at 6:50 pm. On the last day of the month, in Janesville, Iowa, sunrise is at 7:43 am and sunset at 6:03 pm CDT.

How long on average sun shines in October in Janesville?

In October, the average sunshine duration in Janesville, Iowa, is 5.4h.

What is the UV index reading in October in Janesville?

The average daily maximum UV index in October in Janesville, Iowa, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Janesville, IA

Average temperature in October - Janesville, IA
  • Average high temperature in October: 58.1°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in October: 43°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in October
Janesville, IA

Average pressure in October - Janesville, IA
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in October
Janesville, IA

Average wind speed in October - Janesville, IA
  • Average wind speed in October: 9.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in October
Janesville, IA

Average humidity in October - Janesville, IA
  • Average humidity in October: 72%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in October
Janesville, IA

Average rainfall in October - Janesville, IA
  • Average rainfall in October: 2.68"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in October
Janesville, IA

Average rainfall days in October - Janesville, IA
  • Average rainfall days in October: 10.7 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in October
Janesville, IA

Average snowfall in October - Janesville, IA
  • Average snowfall in October: 0.24"

The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Janesville, IA

Average snowfall days in October - Janesville, IA
  • Average snowfall days in October: 1.2 days

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Janesville, IA

Average daylight in October / Average sunshine in October - Janesville, IA
  • Average daylight in October: 11h and 0min

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

  • Average sunshine in October: 5h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in October
Janesville, IA

Average sunshine days in October - Janesville, IA
  • Average sunshine days in October: 17.8 days

The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in October
Janesville, IA

Average UV index in October - Janesville, IA
  • Average UV index in October: 2

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

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Average cloud cover in October
Janesville, IA

Average cloud cover in October - Janesville, IA
  • Average cloud cover in October: 39

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in October
Janesville, IA

Average visibility in October - Janesville, IA
  • Average visibility in October: 6mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

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Janesville, Iowa, USA

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