July weather forecast
Decatur City, IA

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Weather in July

July, like June, in Decatur City, Iowa, is a moderately hot summer month, with an average temperature ranging between max 83.5°F (28.6°C) and min 66°F (18.9°C).

Temperature

Decatur City notes the warmest temperatures in July, with a high average of 83.5°F (28.6°C) and a low of 66°F (18.9°C).

Heat index

The heat index in July is evaluated at a hot 93.2°F (34°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

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

Rainfall

In Decatur City, in July, it is raining for 15.1 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Decatur City, there are 132.4 rainfall days, and 20.24" (514mm) of precipitation is accumulated.

Snowfall

In Decatur City, snow does not fall in June through September.

Daylight

In Decatur City, the average length of the day in July is 14h and 45min.
On the first day of July, sunrise is at 5:48 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:31 pm CDT.

Sunshine

With an average of 10.4h of sunshine, July has the most sunshine of the year in Decatur City.

UV index

The months with the highest UV index in Decatur City are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What is the warmest month in Decatur City?

Decatur City's warmest temperatures are experienced in July, with average high temperatures of 83.5°F (28.6°C) and lows of 66°F (18.9°C).

Is it hot in Decatur City during July?

During July, Decatur City experiences an average high-temperature of 83.5°F (28.6°C) and a low-temperature of 66°F (18.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 93.2°F (34°C).

What is the average humidity in July in Decatur City?

In July, the average relative humidity in Decatur City, Iowa, is 80%.

How many days does it rain in July in Decatur City?

In Decatur City, Iowa, in July, during 15.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in Decatur City?

In Decatur City, snow does not fall in June through September.

What is the average length of the day in July in Decatur City?

The average day length in July in Decatur City is 14h and 45min.

What time are sunrise and sunset in July in Decatur City?

In July, on the first day of the month, sunrise is at 5:48 am and sunset at 8:50 pm. On the last day of the month, in Decatur City, Iowa, sunrise is at 6:11 am and sunset at 8:31 pm CDT.

What month has the most sunshine in Decatur City?

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

How long on average sun shines in July in Decatur City?

The average sunshine duration in July is 10.4h.

When is the highest UV index in Decatur City?

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

What is the UV index reading in July in Decatur City?

The average daily maximum UV index in July in Decatur City, Iowa, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to 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
Decatur City, IA

Average temperature in July - Decatur City, IA
  • Average high temperature in July: 83.5°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in July: 66°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in July
Decatur City, IA

Average pressure in July - Decatur City, IA
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in July
Decatur City, IA

Average wind speed in July - Decatur City, IA
  • Average wind speed in July: 6.9mph

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in July
Decatur City, IA

Average humidity in July - Decatur City, IA
  • Average humidity in July: 80%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Decatur City, IA

Average rainfall in July - Decatur City, IA
  • Average rainfall in July: 1.89"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").

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Average rainfall days in July
Decatur City, IA

Average rainfall days in July - Decatur City, IA
  • Average rainfall days in July: 15.1 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in July
Decatur City, IA

Average snowfall in July - Decatur City, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Decatur City, IA

Average snowfall days in July - Decatur City, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (8.6 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
Decatur City, IA

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

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 July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in July
Decatur City, IA

Average sunshine days in July - Decatur City, IA
  • Average sunshine days in July: 11.6 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in July
Decatur City, IA

Average UV index in July - Decatur City, IA
  • Average UV index in July: 6

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

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Average cloud cover in July
Decatur City, IA

Average cloud cover in July - Decatur City, IA
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in July
Decatur City, IA

Average visibility in July - Decatur City, 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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Decatur City, Iowa, USA

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