August weather forecast
Calamus, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Calamus, Iowa, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 61.9°F (16.6°C).

Temperature

Calamus, Iowa, indicates an average high-temperature of a still moderately hot 80.1°F (26.7°C) in August, showing minor variation from July's 80.4°F (26.9°C). Throughout the month of August, Calamus witnesses an average temperature of 61.9°F (16.6°C).

Humidity

In Calamus, the average relative humidity in August is 80%.

Rainfall

In August, the rain falls for 12.7 days. Throughout August, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 142.1 rainfall days, and 28.35" (720mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 49min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:37 pm CDT.

Sunshine

The average sunshine in August in Calamus is 9.9h.

UV index

In Calamus, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 5 in August suggests the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Calamus, records 80.1°F (26.7°C), while the low-temperature is 61.9°F (16.6°C).

What is the average humidity in August?

In Calamus, Iowa, the average relative humidity in August is 80%.

How many days does it rain in August?

In Calamus, in August, during 12.7 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

The average day length in August is 13h and 49min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:57 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:37 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.9h.

What is the UV index intensity in August?

In Calamus, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Calamus, IA

Average temperature in August - Calamus, IA
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in August: 61.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in August
Calamus, IA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Calamus, IA

Average wind speed in August - Calamus, IA
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in August
Calamus, IA

Average humidity in August - Calamus, IA
  • Average humidity in August: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Calamus, IA

Average rainfall in August - Calamus, IA
  • Average rainfall in August: 1.73"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in August
Calamus, IA

Average rainfall days in August - Calamus, IA
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in August
Calamus, IA

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

The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Calamus, IA

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

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Calamus, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Calamus, IA

Average sunshine days in August - Calamus, IA
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in August
Calamus, IA

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

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

Average cloud cover in August
Calamus, IA

Average cloud cover in August - Calamus, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Calamus, IA

Average visibility in August - Calamus, 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).

Calamus, Iowa, USA

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