July weather forecast
Castana, IA

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Weather in July

July, the same as June, is another warm summer month in Castana, Iowa, with an average temperature ranging between min 65.5°F (18.6°C) and max 83.8°F (28.8°C).

Temperature

Castana's warmest weather arrives in July, when temperatures average a high of 83.8°F (28.8°C) and a low of 65.5°F (18.6°C).

Heat index

July's heat index is computed to be a hot 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In Castana, the average relative humidity in July is 76%.

Rainfall

In Castana, in July, it is raining for 12.6 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 117.6 rainfall days, and 21.89" (556mm) of precipitation is accumulated.

Snowfall

In Castana, snow does not fall in May through September.

Daylight

The average length of the day in July in Castana is 14h and 53min.
On the first day of July, sunrise is at 5:52 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:43 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What are the warmest months in Castana?

Castana's July weather reaches an average high of 83.8°F (28.8°C) and an average low of 65.5°F (18.6°C), making it the warmest month.

How hot does it get in Castana in July?

An average high-temperature, in July, in Castana, is 83.8°F (28.8°C) and the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 91.4°F (33°C).

What is the average humidity in July in Castana?

The average relative humidity in July in Castana, Iowa, is 76%.

How many days does it rain in July in Castana?

In July, in Castana, Iowa, the rain falls for 12.6 days. Throughout July, 1.77" (45mm) of precipitation is accumulated.

When it does not snow in Castana?

May through September are months without snowfall in Castana, Iowa.

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

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

When is the sunrise / sunset in July in Castana?

On the first day of July in Castana, sunrise is at 5:52 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:43 pm CDT.

What month has the most sunshine in Castana?

The month with the most sunshine in Castana, Iowa, is July, with an average of 10.6h of sunshine.

How long on average sun shines in July in Castana?

In Castana, Iowa, the average sunshine duration in July is 10.6h.

When is the highest UV index in Castana?

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

What is the UV index reading in July in Castana?

The average daily maximum UV index in July in Castana is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Castana, IA

Average temperature in July - Castana, IA
  • Average high temperature in July: 83.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in July: 65.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in July
Castana, IA

Average pressure in July - Castana, IA
  • Average pressure in July: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in July
Castana, IA

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

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

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Average humidity in July
Castana, IA

Average humidity in July - Castana, IA
  • Average humidity in July: 76%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).

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Average rainfall in July
Castana, IA

Average rainfall in July - Castana, IA
  • Average rainfall in July: 1.77"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in July
Castana, IA

Average rainfall days in July - Castana, IA
  • Average rainfall days in July: 12.6 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in July
Castana, IA

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

The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Castana, IA

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

The month with the highest number of snowfall days is January (8.9 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
Castana, IA

Average daylight in July / Average sunshine in July - Castana, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in July
Castana, IA

Average sunshine days in July - Castana, IA
  • Average sunshine days in July: 15.6 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).

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Average UV index in July
Castana, IA

Average UV index in July - Castana, 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 February and December (UV index 1).

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Average cloud cover in July
Castana, IA

Average cloud cover in July - Castana, IA
  • Average cloud cover in July: 26

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in July
Castana, IA

Average visibility in July - Castana, 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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Castana, Iowa, USA

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