August weather forecast
Declo, ID

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Weather in August

The last month of the summer, August, is another tropical month in Declo, Idaho, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 60.8°F (16°C).

Temperature

August's arrival shows an average high-temperature of a still hot 86.9°F (30.5°C), hardly different from the previous month. Declo witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 60.8°F (16°C) throughout August.

Humidity

July and August, with an average relative humidity of 30%, are the least humid months in Declo, Idaho.

Rainfall

In Declo, during August, the rain falls for 5.2 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 105.2 rainfall days, and 10.63" (270mm) of precipitation is accumulated.

Snowfall

June through August are months without snowfall in Declo.

Daylight

In Declo, the average length of the day in August is 13h and 51min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:54 pm. On the last day of August, in Declo, sunrise is at 6:59 am and sunset at 8:09 pm MDT.

Sunshine

In Declo, the average sunshine in August is 11.8h.

UV index

In August, the average daily maximum UV index in Declo is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 5 suggests this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot is August in Declo?

The high-temperature, in August, in Declo, records 86.9°F (30.5°C), while the low-temperature is 60.8°F (16°C).

What is the least humid month in Declo?

July and August, with an average relative humidity of 30%, are the least humid months in Declo.

What is the average humidity in August in Declo?

The average relative humidity in August is 30%.

How many days does it rain in August in Declo?

In Declo, Idaho, during August, the rain falls for 5.2 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When it does not snow in Declo?

In Declo, Idaho, snow does not fall in June through August.

Does it snow in Declo in August?

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

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

In August, the average day length in Declo is 13h and 51min.

When are sunrise and sunset in August in Declo?

In August, on the first day of the month, sunrise is at 6:27 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:09 pm MDT.

How long on average sun shines in August in Declo?

The average sunshine duration in August in Declo is 11.8h.

What is the UV index intensity in August in Declo?

In Declo, Idaho, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Declo, ID

Average temperature in August - Declo, ID
  • Average high temperature in August: 86.9°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (32.5°F).

  • Average low temperature in August: 60.8°F

The months with the highest average low temperature are July and August (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).

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Average pressure in August
Declo, ID

Average pressure in August - Declo, ID
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in August
Declo, ID

Average wind speed in August - Declo, ID
  • Average wind speed in August: 7.3mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is January (7.1mph).

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Average humidity in August
Declo, ID

Average humidity in August - Declo, ID
  • Average humidity in August: 30%

The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (30%).

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Average rainfall in August
Declo, ID

Average rainfall in August - Declo, ID
  • Average rainfall in August: 0.35"

The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in August
Declo, ID

Average rainfall days in August - Declo, ID
  • Average rainfall days in August: 5.2 days

The months with the highest number of rainy days are March and April (14 days).
The months with the least rainy days are July and August (5.2 days).

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Average snowfall in August
Declo, ID

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

The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Declo, ID

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

The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Declo, ID
  • 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: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

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Average sunshine days in August
Declo, ID

Average sunshine days in August - Declo, ID
  • Average sunshine days in August: 21.8 days

The month with the most sunshine days is July (22.6 days).
The month with the least sunshine days is March (12 days).

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Average UV index in August
Declo, ID

Average UV index in August - Declo, ID
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Declo, ID

Average cloud cover in August - Declo, ID
  • Average cloud cover in August: 11

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in August
Declo, ID

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

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

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Declo, Idaho, USA

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