July weather forecast
Harlan, IA

Weather in July

July, the same as June, is a moderately hot summer month in Harlan, Iowa, with an average temperature ranging between min 64.9°F (18.3°C) and max 82.6°F (28.1°C).

Temperature

The warmest month is July, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 64.9°F (18.3°C).

Heat index

The average heat index in July is computed to be a hot 90.3°F (32.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like clothing, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Harlan, the average relative humidity in July is 80%.

Rainfall

In Harlan, during July, the rain falls for 13.1 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Harlan, Iowa, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

In Harlan, snow does not fall in June through September.

Daylight

The average length of the day in July in Harlan is 14h and 50min.
On the first day of July in Harlan, sunrise is at 5:50 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:40 pm CDT.

Sunshine

July has the most sunshine of the year in Harlan, with an average of 10.4h of sunshine.

UV index

The months with the highest UV index in Harlan are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Harlan?

The warmest month in Harlan, Iowa, is July, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 64.9°F (18.3°C).

What is the temperature in July in Harlan?

In Harlan, Iowa, in July, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 90.3°F (32.4°C).

What is the average humidity in July in Harlan?

In July, the average relative humidity is 80%.

How many days does it rain in July in Harlan?

In Harlan, Iowa, during July, the rain falls for 13.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Harlan?

In Harlan, snow does not fall in June through September.

How many hours of daylight does Harlan have in July?

In July, the average day length in Harlan is 14h and 50min.

When is the sunrise / sunset in July in Harlan?

On the first day of July in Harlan, sunrise is at 5:50 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:40 pm CDT.

What month has the most sunshine in Harlan?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Harlan, Iowa.

How long on average sun shines in July in Harlan?

In July, the average sunshine duration is 10.4h.

What is the month with the highest UV index in Harlan?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Harlan, Iowa.

How high is the UV index in July in Harlan?

In Harlan, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in July
Harlan, IA

Average temperature in July - Harlan, IA
  • Average high temperature in July: 82.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

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Average pressure in July
Harlan, IA

Average pressure in July - Harlan, IA
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in July
Harlan, IA

Average wind speed in July - Harlan, IA
  • Average wind speed in July: 7.2mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in July
Harlan, IA

Average humidity in July - Harlan, IA
  • Average humidity in July: 80%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in July
Harlan, IA

Average rainfall in July - Harlan, IA
  • Average rainfall in July: 1.5"

The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in July
Harlan, IA

Average rainfall days in July - Harlan, IA
  • Average rainfall days in July: 13.1 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in July
Harlan, IA

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

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Harlan, IA

Average snowfall days in July - Harlan, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (8.3 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
Harlan, IA

Average daylight in July / Average sunshine in July - Harlan, IA
  • Average daylight in July: 14h and 50min

The month with the longest days is June (Average daylight: 15h and 9min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in July: 10.4h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.5h).

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Average sunshine days in July
Harlan, IA

Average sunshine days in July - Harlan, IA
  • Average sunshine days in July: 12.7 days

The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in July
Harlan, IA

Average UV index in July - Harlan, IA
  • Average UV index in July: 6

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, October, November and December (UV index 2).

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Average cloud cover in July
Harlan, IA

Average cloud cover in July - Harlan, IA
  • Average cloud cover in July: 27

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in July
Harlan, IA

Average visibility in July - Harlan, IA
  • Average visibility in July: 6mi

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

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