August weather forecast
Irwin, ID

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Weather in August

August, the last month of the summer in Irwin, is another warm month, with an average temperature varying between 45.3°F (7.4°C) and 76.5°F (24.7°C).

Temperature

The arrival of August marks a slight shift to an average high-temperature of a still warm 76.5°F (24.7°C) from July's 77.5°F (25.3°C). A noticeable temperature swing characterizes Irwin's August nights, dipping to an average of 45.3°F (7.4°C).

Humidity

The least humid month is August, with an average relative humidity of 46%.

Rainfall

In Irwin, in August, during 10.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Irwin, there are 127 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

In Irwin, Idaho, snow does not fall in July and August.

Daylight

In Irwin, the average length of the day in August is 13h and 55min.
On the first day of August, sunrise is at 6:15 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:01 pm MDT.

Sunshine

The average sunshine in August in Irwin is 11.7h.

UV index

In Irwin, Idaho, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Irwin in August?

In August, in Irwin, the average high-temperature is 76.5°F (24.7°C), and the average low-temperature is 45.3°F (7.4°C).

What is the least humid month in Irwin?

The least humid month is August, with an average relative humidity of 46%.

What is the average humidity in August in Irwin?

In Irwin, the average relative humidity in August is 46%.

How many days does it rain in August in Irwin?

In Irwin, in August, it is raining for 10.6 days, with typically 0.94" (24mm) of accumulated precipitation.

When it does not snow in Irwin?

July and August are months without snowfall.

Does it snow in Irwin in August?

In Irwin, Idaho, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Irwin have in August?

In August, the average day length in Irwin is 13h and 55min.

What time are sunrise and sunset in August in Irwin?

On the first day of August, sunrise is at 6:15 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:01 pm MDT.

How many hours of sunshine does Irwin have in August?

In Irwin, the average sunshine duration in August is 11.7h.

How high is the UV index in August in Irwin?

In August, the average daily maximum UV index in Irwin is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Irwin, ID

Average temperature in August - Irwin, ID
  • Average high temperature in August: 76.5°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).

  • Average low temperature in August: 45.3°F

The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

Average pressure in August
Irwin, ID

Average pressure in August - Irwin, ID
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Irwin, ID

Average wind speed in August - Irwin, ID
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

Average humidity in August
Irwin, ID

Average humidity in August - Irwin, ID
  • Average humidity in August: 46%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).

Average rainfall in August
Irwin, ID

Average rainfall in August - Irwin, ID
  • Average rainfall in August: 0.94"

The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").

Average rainfall days in August
Irwin, ID

Average rainfall days in August - Irwin, ID
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).

Average snowfall in August
Irwin, ID

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

The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").

Average snowfall days in August
Irwin, ID

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

The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in August / Average sunshine in August - Irwin, ID
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in August
Irwin, ID

Average sunshine days in August - Irwin, ID
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).

Average UV index in August
Irwin, ID

Average UV index in August - Irwin, ID
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in August
Irwin, ID

Average cloud cover in August - Irwin, ID
  • Average cloud cover in August: 13

The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in August
Irwin, ID

Average visibility in August - Irwin, ID
  • Average visibility in August: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).

Irwin, Idaho, USA

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