August weather forecast
Andover, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Andover, Iowa, with an average temperature fluctuating between 61.2°F (16.2°C) and 79.2°F (26.2°C).

Temperature

The commencement of August brings an average high-temperature of a still warm 79.2°F (26.2°C), marking an inconsequential divergence from July. Throughout August nights, Andover registers an average low-temperature of 61.2°F (16.2°C).

Humidity

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

Rainfall

In August, in Andover, the rain falls for 15.3 days. Throughout August, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 149.3 rainfall days, and 29.76" (756mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 49min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:19 pm. On the last day of August, in Andover, sunrise is at 6:26 am and sunset at 7:35 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 5 in August suggests the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Andover in August?

The average high-temperature and low-temperature in Andover, Iowa, during August are 79.2°F (26.2°C) and 61.2°F (16.2°C) respectively.

What is the average humidity in August in Andover?

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

How much does it rain in Andover in August?

In Andover, in August, it is raining for 15.3 days, with typically 2.17" (55mm) of accumulated precipitation.

When it does not snow in Andover?

June through September are months without snowfall.

How many hours of daylight does Andover have in August?

In August, the average day length in Andover is 13h and 49min.

When is the sunrise / sunset in August in Andover?

On the first day of August in Andover, sunrise is at 5:55 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:35 pm CDT.

How many hours of sunshine does Andover have in August?

In August, the average sunshine duration in Andover is 9.7h.

What is the UV index intensity in August in Andover?

The average daily maximum UV index in August in Andover, Iowa, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 August
Andover, IA

Average temperature in August - Andover, IA
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in August
Andover, IA

Average pressure in August - Andover, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Andover, IA

Average wind speed in August - Andover, IA
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Andover, IA

Average humidity in August - Andover, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Andover, IA

Average rainfall in August - Andover, IA
  • Average rainfall in August: 2.17"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in August
Andover, IA

Average rainfall days in August - Andover, IA
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in August
Andover, IA

Average snowfall in August - Andover, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Andover, IA

Average snowfall days in August - Andover, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Andover, IA

Average daylight in August / Average sunshine in August - Andover, IA
  • Average daylight in August: 13h 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 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 42min).

Average sunshine days in August
Andover, IA

Average sunshine days in August - Andover, IA
  • Average sunshine days in August: 13.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in August
Andover, IA

Average UV index in August - Andover, IA
  • Average UV index in August: 5

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

Average cloud cover in August
Andover, IA

Average cloud cover in August - Andover, IA
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in August
Andover, IA

Average visibility in August - Andover, IA
  • Average visibility in August: 5mi

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

Andover, Iowa, USA

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