July weather forecast
Cromwell, IA

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Weather in July

July, like June, in Cromwell, Iowa, is a moderately hot summer month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 65.8°F (18.8°C).

Temperature

Cromwell's warmest month, July, generally records average temperatures ranging from a high of 82.9°F (28.3°C) to a low of 65.8°F (18.8°C).

Heat index

The heat index in July is estimated at a hot 91.4°F (33°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In Cromwell, during July, the rain falls for 14.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 127.7 rainfall days, and 23.39" (594mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in July is 14h and 47min.
On the first day of July, sunrise is at 5:49 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:34 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.1h 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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 6 in July transforms into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

During the warmest month in Cromwell, July, temperatures average a high of 82.9°F (28.3°C) and a low of 65.8°F (18.8°C).

Is it hot during July?

Cromwell in July has an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 65.8°F (18.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 91.4°F (33°C).

What is the average humidity in July?

In July, the average relative humidity is 80%.

How many days does it rain in July?

In July, the rain falls for 14.8 days. Throughout July, 2.32" (59mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

In Cromwell, the average day length in July is 14h and 47min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:49 am and sunset at 8:54 pm. On the last day of the month, in Cromwell, sunrise is at 6:13 am and sunset at 8:34 pm CDT.

What month has the most sunshine?

With an average of 10.1h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Cromwell have in July?

In July, the average sunshine duration is 10.1h.

What is the month with the highest UV index?

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

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from 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
Cromwell, IA

Average temperature in July - Cromwell, IA
  • Average high temperature in July: 82.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

Average pressure in July
Cromwell, IA

Average pressure in July - Cromwell, 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 (29.88"Hg).

Average wind speed in July
Cromwell, IA

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

The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in July
Cromwell, IA

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

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Cromwell, IA

Average rainfall in July - Cromwell, IA
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in July
Cromwell, IA

Average rainfall days in July - Cromwell, IA
  • Average rainfall days in July: 14.8 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (3.7 days).

Average snowfall in July
Cromwell, IA

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

The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Cromwell, IA

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Cromwell, IA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in July
Cromwell, IA

Average sunshine days in July - Cromwell, IA
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in July
Cromwell, IA

Average UV index in July - Cromwell, 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).

Average cloud cover in July
Cromwell, IA

Average cloud cover in July - Cromwell, IA
  • Average cloud cover in July: 30

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in July
Cromwell, IA

Average visibility in July - Cromwell, 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).

Cromwell, Iowa, USA

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