July weather forecast
Janesville, IA

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Weather in July

July, like June, in Janesville, Iowa, is another warm summer month, with an average temperature varying between 79.5°F (26.4°C) and 63°F (17.2°C).

Temperature

In Janesville, the average temperatures in July are the highest, with a peak at 79.5°F (26.4°C) and a low of 63°F (17.2°C).

Humidity

The average relative humidity in July in Janesville is 84%.

Rainfall

In Janesville, in July, during 16.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Janesville, during the entire year, the rain falls for 138.7 days and collects up to 28.78" (731mm) of precipitation.

Snowfall

June through September are months without snowfall in Janesville.

Daylight

In Janesville, the average length of the day in July is 14h and 57min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:30 pm CDT.

Sunshine

The month with the most sunshine is July, with an average of 9.9h of sunshine.

UV index

The average daily maximum UV index in July in Janesville, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 5 during July morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What part of the year is the hottest in Janesville?

July temperatures in Janesville, Iowa, tend to peak at an average high of 79.5°F (26.4°C) and dip to a low of 63°F (17.2°C).

What are the temperatures in Janesville in July?

The high-temperature in Janesville during July is 79.5°F (26.4°C) and the low-temperature is 63°F (17.2°C).

What is the average humidity in July in Janesville?

In July, the average relative humidity is 84%.

How many days does it rain in July in Janesville?

In July, in Janesville, Iowa, the rain falls for 16.3 days. Throughout July, 2.95" (75mm) of precipitation is accumulated.

When it does not snow in Janesville?

June through September are months without snowfall in Janesville.

What is the average length of the day in July in Janesville?

In July, the average day length is 14h and 57min.

What time are sunrise and sunset in July in Janesville?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:51 pm. On the last day of the month, in Janesville, Iowa, sunrise is at 6:01 am and sunset at 8:30 pm CDT.

What month has the most sunshine in Janesville?

July has the most sunshine of the year in Janesville, with an average of 9.9h of sunshine.

How many hours of sunshine does Janesville have in July?

The average sunshine duration in July in Janesville is 9.9h.

What is the UV index reading in July in Janesville?

In July, the average daily maximum UV index 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 July
Janesville, IA

Average temperature in July - Janesville, IA
  • Average high temperature in July: 79.5°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 July: 63°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 July
Janesville, IA

Average pressure in July - Janesville, IA
  • Average pressure in July: 29.96"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 July
Janesville, IA

Average wind speed in July - Janesville, IA
  • Average wind speed in July: 7.1mph

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 July
Janesville, IA

Average humidity in July - Janesville, IA
  • Average humidity in July: 84%

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 July
Janesville, IA

Average rainfall in July - Janesville, IA
  • Average rainfall in July: 2.95"

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 July
Janesville, IA

Average rainfall days in July - Janesville, IA
  • Average rainfall days in July: 16.3 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 July
Janesville, IA

Average snowfall in July - Janesville, IA
  • Average snowfall in July: 0"

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 July
Janesville, IA

Average snowfall days in July - Janesville, IA
  • Average snowfall days in July: 0 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 July /
Average sunshine in July
Janesville, IA

Average daylight in July / Average sunshine in July - Janesville, IA
  • Average daylight in July: 14h and 5min

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 July: 9h and 5min

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 July
Janesville, IA

Average sunshine days in July - Janesville, IA
  • Average sunshine days in July: 10.3 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 July
Janesville, IA

Average UV index in July - Janesville, IA
  • Average UV index in July: 5

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 July
Janesville, IA

Average cloud cover in July - Janesville, IA
  • Average cloud cover in July: 34

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 July
Janesville, IA

Average visibility in July - Janesville, IA
  • Average visibility in July: 5mi

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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