July weather forecast
Charter Oak, IA

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Weather in July

July, like June, in Charter Oak, Iowa, is another warm summer month, with an average temperature varying between 81.7°F (27.6°C) and 64.8°F (18.2°C).

Temperature

July, with its high-temperature average of 81.7°F (27.6°C) and a low-temperature average of 64.8°F (18.2°C), is the warmest month.

Heat index

July's mean heat index is evaluated at a tropical 87.8°F (31°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

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

Rainfall

In Charter Oak, during July, the rain falls for 14 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Charter Oak, during the entire year, the rain falls for 123 days and collects up to 24.72" (628mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 53min.
On the first day of the month, sunrise is at 5:50 am and sunset at 9:02 pm. On the last day of July, sunrise is at 6:15 am and sunset at 8:41 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest in Charter Oak?

The highest temperatures are recorded in July, with averages reaching a high of 81.7°F (27.6°C) and a low of 64.8°F (18.2°C).

What are July temperatures in Charter Oak?

In Charter Oak, 81.7°F (27.6°C) is the average high-temperature and 64.8°F (18.2°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in July is evaluated at 87.8°F (31°C).

What is the average humidity in July in Charter Oak?

The average relative humidity in July in Charter Oak, Iowa, is 80%.

How much does it rain in Charter Oak in July?

In Charter Oak, in July, it is raining for 14 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow in Charter Oak?

June through September are months without snowfall.

What is the average length of the day in July in Charter Oak?

In July, the average day length is 14h and 53min.

When are sunrise and sunset in July in Charter Oak?

In July, on the first day of the month, sunrise is at 5:50 am and sunset at 9:02 pm. On the last day of the month, in Charter Oak, sunrise is at 6:15 am and sunset at 8:41 pm CDT.

What month has the most sunshine in Charter Oak?

With an average of 10.3h of sunshine, July has the most sunshine of the year in Charter Oak.

How many hours of sunshine does Charter Oak have in July?

The average sunshine duration in July in Charter Oak is 10.3h.

What is the month with the highest UV index in Charter Oak?

The months with the highest UV index in Charter Oak, Iowa, are June and July, with an average maximum UV index of 6.

What is the UV index intensity in July in Charter Oak?

In July, the average daily maximum UV index in Charter Oak, Iowa, is 6. A UV Index of 6 to 7 symbolizes a high 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
Charter Oak, IA

Average temperature in July - Charter Oak, IA
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).

Average pressure in July
Charter Oak, IA

Average pressure in July - Charter Oak, 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).

Average wind speed in July
Charter Oak, IA

Average wind speed in July - Charter Oak, IA
  • Average wind speed in July: 7.4mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in July
Charter Oak, IA

Average humidity in July - Charter Oak, IA
  • Average humidity in July: 80%

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

Average rainfall in July
Charter Oak, IA

Average rainfall in July - Charter Oak, IA
  • Average rainfall in July: 2.2"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in July
Charter Oak, IA

Average rainfall days in July - Charter Oak, IA
  • Average rainfall days in July: 14 days

The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (3 days).

Average snowfall in July
Charter Oak, IA

Average snowfall in July - Charter Oak, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Charter Oak, IA

Average snowfall days in July - Charter Oak, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Charter Oak, IA

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in July
Charter Oak, IA

Average sunshine days in July - Charter Oak, IA
  • Average sunshine days in July: 14.8 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in July
Charter Oak, IA

Average UV index in July - Charter Oak, IA
  • Average UV index in July: 6

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

Average cloud cover in July
Charter Oak, IA

Average cloud cover in July - Charter Oak, IA
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in July
Charter Oak, IA

Average visibility in July - Charter Oak, IA
  • Average visibility in July: 6mi

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

Charter Oak, Iowa, USA

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