August weather forecast
Alta Vista, IA

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Weather in August

The last month of the summer, August, is another warm month in Alta Vista, Iowa, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 59.5°F (15.3°C).

Temperature

Transitioning into August, Alta Vista experiences an average high-temperature of a still moderately hot 77.4°F (25.2°C), marking a minor shift from the preceding month. During the month of August, Alta Vista's nighttime temperature lowers to an average of 59.5°F (15.3°C).

Humidity

In August, the average relative humidity is 82%.

Rainfall

In Alta Vista, Iowa, in August, it is raining for 10.6 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Alta Vista, there are 98 rainfall days, and 9.8" (249mm) of precipitation is accumulated.

Snowfall

In Alta Vista, snow does not fall in June through September.

Daylight

In Alta Vista, the average length of the day in August is 13h and 54min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:31 pm. On the last day of August, in Alta Vista, sunrise is at 6:33 am and sunset at 7:45 pm CDT.

Sunshine

In Alta Vista, the average sunshine in August is 9.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Alta Vista in August?

The high-temperature, in August, in Alta Vista, is 77.4°F (25.2°C), while the low-temperature averages to 59.5°F (15.3°C).

What is the average humidity in August in Alta Vista?

In August, the average relative humidity in Alta Vista is 82%.

How many days does it rain in August in Alta Vista?

In Alta Vista, Iowa, in August, during 10.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Alta Vista?

In Alta Vista, Iowa, snow does not fall in June through September.

What is the average length of the day in August in Alta Vista?

In Alta Vista, the average day length in August is 13h and 54min.

When are sunrise and sunset in August in Alta Vista?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:31 pm. On the last day of the month, in Alta Vista, Iowa, sunrise is at 6:33 am and sunset at 7:45 pm CDT.

How many hours of sunshine does Alta Vista have in August?

In Alta Vista, Iowa, the average sunshine duration in August is 9.7h.

How high is the UV index in August in Alta Vista?

In August, the average daily maximum UV index in Alta Vista is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 August
Alta Vista, IA

Average temperature in August - Alta Vista, IA
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in August
Alta Vista, IA

Average pressure in August - Alta Vista, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Alta Vista, IA

Average wind speed in August - Alta Vista, IA
  • Average wind speed in August: 7.2mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

Average humidity in August
Alta Vista, IA

Average humidity in August - Alta Vista, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Alta Vista, IA

Average rainfall in August - Alta Vista, IA
  • Average rainfall in August: 1.02"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.31").

Average rainfall days in August
Alta Vista, IA

Average rainfall days in August - Alta Vista, IA
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2 days).

Average snowfall in August
Alta Vista, IA

Average snowfall in August - Alta Vista, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Alta Vista, IA

Average snowfall days in August - Alta Vista, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Alta Vista, IA

Average daylight in August / Average sunshine in August - Alta Vista, IA
  • Average daylight in August: 13h 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 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in August
Alta Vista, IA

Average sunshine days in August - Alta Vista, IA
  • Average sunshine days in August: 18 days

The month with the most sunshine days is November (22 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in August
Alta Vista, IA

Average UV index in August - Alta Vista, IA
  • Average UV index in August: 5

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

Average cloud cover in August
Alta Vista, IA

Average cloud cover in August - Alta Vista, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Alta Vista, IA

Average visibility in August - Alta Vista, IA
  • Average visibility in August: 6mi

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

Alta Vista, Iowa, USA

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