August weather forecast
Rossie, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Rossie, Iowa, with an average temperature fluctuating between 59.5°F (15.3°C) and 78.3°F (25.7°C).

Temperature

As Rossie welcomes August, the average high-temperature stabilizes at a still warm 78.3°F (25.7°C), showing little deviation from July's 80.2°F (26.8°C). August brings with it a nighttime average temperature of 59.5°F (15.3°C) in Rossie.

Humidity

The average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 12.6 days. Throughout August, 1.61" (41mm) of precipitation is accumulated. In Rossie, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of August, sunrise is at 6:12 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

Sunshine

In August, the average sunshine is 9.6h.

UV index

In Rossie, 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 daily high UV index of 5 in August leads to these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The high-temperature, in August, in Rossie, is 78.3°F (25.7°C), while the low-temperature averages to 59.5°F (15.3°C).

What is the average humidity in August?

In Rossie, Iowa, the average relative humidity in August is 79%.

How much does it rain in August?

In August, the rain falls for 12.6 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Rossie have in August?

The average day length in August is 13h and 53min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:12 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Rossie have in August?

In Rossie, the average sunshine duration in August is 9.6h.

What is the UV index reading in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents 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
Rossie, IA

Average temperature in August - Rossie, IA
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in August
Rossie, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in August
Rossie, IA

Average wind speed in August - Rossie, IA
  • Average wind speed in August: 7.8mph

The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in August
Rossie, IA

Average humidity in August - Rossie, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Rossie, IA

Average rainfall in August - Rossie, IA
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Rossie, IA

Average rainfall days in August - Rossie, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in August
Rossie, IA

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

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Rossie, IA

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Rossie, 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 6min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Rossie, IA

Average sunshine days in August - Rossie, IA
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in August
Rossie, IA

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

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 August
Rossie, IA

Average cloud cover in August - Rossie, IA
  • Average cloud cover in August: 32

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

Average visibility in August
Rossie, IA

Average visibility in August - Rossie, IA
  • Average visibility in August: 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).

Rossie, Iowa, USA

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