July weather forecast
Alta, IA

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Weather in July

July, the same as June, is a moderately hot summer month in Alta, Iowa, with an average temperature ranging between min 64°F (17.8°C) and max 81.3°F (27.4°C).

Temperature

With an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month.

Heat index

The heat index value during July is estimated at a hot 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

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

Rainfall

In Alta, in July, during 14.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Alta, during the entire year, the rain falls for 135.1 days and collects up to 26.73" (679mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Alta, the average length of the day in July is 14h and 57min.
On the first day of July, sunrise is at 5:47 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:42 pm CDT.

Sunshine

With an average of 10.5h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 in July translates into these instructions:
Fend off overexposure. Sun protection is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July is the month when Alta experiences its warmest temperatures, averaging a high of 81.3°F (27.4°C) and a low of 64°F (17.8°C).

What is the temperature in July?

In Alta, 81.3°F (27.4°C) is the average high-temperature and 64°F (17.8°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is estimated at 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 80%.

How many days does it rain in July?

In July, the rain falls for 14.8 days. Throughout July, 2.24" (57mm) 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 Alta?

In July, the average day length is 14h and 57min.

When are sunrise and sunset in July in Alta?

In July, on the first day of the month, sunrise is at 5:47 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:42 pm CDT.

What month has the most sunshine?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Alta have in July?

The average sunshine duration in July is 10.5h.

When is the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in July?

In Alta, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Alta, IA

Average temperature in July - Alta, IA
  • Average high temperature in July: 81.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in July: 64°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in July
Alta, IA

Average pressure in July - Alta, 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
Alta, IA

Average wind speed in July - Alta, IA
  • Average wind speed in July: 7.5mph

The windiest months (with the highest average wind speed) are January and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

Average humidity in July
Alta, IA

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

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in July
Alta, IA

Average rainfall in July - Alta, IA
  • Average rainfall in July: 2.24"

The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in July
Alta, IA

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

The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in July
Alta, IA

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

The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Alta, IA

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

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in July
Alta, IA

Average sunshine days in July - Alta, IA
  • Average sunshine days in July: 12.9 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (8.1 days).

Average UV index in July
Alta, IA

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

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

Average cloud cover in July
Alta, IA

Average cloud cover in July - Alta, 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
Alta, IA

Average visibility in July - Alta, 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).

Alta, Iowa, USA

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