August weather forecast
Caldwell, ID

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A small, calm river flows via a scenic nature park full of trees in the city of Caldwell, Idaho
A small, calm river flows via a scenic nature park full of trees in the city of Caldwell, Idaho

Weather in August

August witnesses a slight dip in temperature but remains high, maintaining the summer's essence. Rainfall sees a minuscule increase, rising to 0.2" (5mm), but the summer heat dominates most days, challenging the relief brought by the occasional drizzle. Despite the heat, residents enjoy adventurous water-related activities. Summer retains its grip on Caldwell, with August displaying the relentless continuity.

Temperature

With the onset of August, the average high-temperature stands at a still tropical 89.8°F (32.1°C), closely aligned with July's 90.9°F (32.7°C). Caldwell's August nights bring a significant temperature shift, averaging at an enjoyable 62.8°F (17.1°C).

Humidity

The least humid month in Caldwell is August, with an average relative humidity of 29%.

Rainfall

In August, in Caldwell, the rain falls for 3.5 days. Throughout August, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 103.7 rainfall days, and 9.84" (250mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Caldwell is 13h and 55min.
On the first day of the month, sunrise is at 6:36 am and sunset at 9:09 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:23 pm MDT.

Sunshine

In Caldwell, the average sunshine in August is 11.3h.

UV index

In Caldwell, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot does it get in Caldwell in August?

The average high-temperature, in August, in Caldwell, is 89.8°F (32.1°C), while the average low-temperature is 62.8°F (17.1°C).

What is the least humid month in Caldwell?

August is the least humid month in Caldwell, Idaho, with an average relative humidity of 29%.

What is the average humidity in August in Caldwell?

In Caldwell, Idaho, the average relative humidity in August is 29%.

How many days does it rain in August in Caldwell?

In Caldwell, Idaho, during August, the rain falls for 3.5 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow in Caldwell?

In Caldwell, Idaho, snow does not fall in May through October.

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

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

When are sunrise and sunset in August in Caldwell?

On the first day of August, sunrise is at 6:36 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:23 pm MDT.

How long on average sun shines in August in Caldwell?

In August, the average sunshine duration is 11.3h.

What is the UV index intensity in August in Caldwell?

The average daily maximum UV index in August in Caldwell is 6. A UV Index value of 6 to 7 symbolizes a high 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
Caldwell, ID

Average temperature in August - Caldwell, ID
  • Average high temperature in August: 89.8°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is December (36.3°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is August (62.8°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

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Average pressure in August
Caldwell, ID

Average pressure in August - Caldwell, ID
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in August
Caldwell, ID

Average wind speed in August - Caldwell, ID
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).

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Average humidity in August
Caldwell, ID

Average humidity in August - Caldwell, ID
  • Average humidity in August: 29%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (29%).

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Average rainfall in August
Caldwell, ID

Average rainfall in August - Caldwell, ID
  • Average rainfall in August: 0.2"

The wettest month (with the highest rainfall) is March (1.38").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in August
Caldwell, ID

Average rainfall days in August - Caldwell, ID
  • Average rainfall days in August: 3.5 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in August
Caldwell, ID

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

The month with the highest snowfall is December (3.35").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Caldwell, ID

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

The month with the highest number of snowfall days is December (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Caldwell, 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 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in August
Caldwell, ID

Average sunshine days in August - Caldwell, ID
  • Average sunshine days in August: 22.9 days

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (14.6 days).

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Average UV index in August
Caldwell, ID

Average UV index in August - Caldwell, ID
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Caldwell, ID

Average cloud cover in August - Caldwell, ID
  • Average cloud cover in August: 8

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in August
Caldwell, ID

Average visibility in August - Caldwell, ID
  • 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).

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Caldwell, Idaho, USA

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