August weather forecast
Irwin, IA

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Weather in August

The last month of the summer, August, is another warm month in Irwin, Iowa, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 80.2°F (26.8°C).

Temperature

With the onset of August, a modest change to a still warm 80.2°F (26.8°C) from July's 82.6°F (28.1°C) is noted in high-temperature. Irwin registers a consistent average low-temperature of 62.1°F (16.7°C) during August.

Humidity

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

Rainfall

In August, the rain falls for 12.3 days. Throughout August, 1.93" (49mm) of precipitation is accumulated. Throughout the year, in Irwin, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 49min.
On the first day of August, sunrise is at 6:15 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:55 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What are August temperatures?

The average high-temperature and low-temperature during August are 80.2°F (26.8°C) and 62.1°F (16.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is computed to be 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How much does it rain in August?

In Irwin, during August, the rain falls for 12.3 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August in Irwin?

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

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:15 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:55 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.8h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

In Irwin, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Irwin, IA

Average temperature in August - Irwin, IA
  • Average high temperature in August: 80.2°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in August
Irwin, IA

Average pressure in August - Irwin, 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
Irwin, IA

Average wind speed in August - Irwin, IA
  • Average wind speed in August: 7.4mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity in August
Irwin, IA

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

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Irwin, IA

Average rainfall in August - Irwin, IA
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Irwin, IA

Average rainfall days in August - Irwin, IA
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in August
Irwin, IA

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

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Irwin, IA

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

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Irwin, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in August
Irwin, IA

Average sunshine days in August - Irwin, IA
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in August
Irwin, IA

Average UV index in August - Irwin, IA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in August
Irwin, IA

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Irwin, IA

Average visibility in August - Irwin, 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).

Irwin, Iowa, USA

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