August weather forecast and climate
Callahan, CA

Weather in August

August, the last month of the summer, in Callahan, is also a moderately hot month, with average temperature ranging between min 50.7°F (10.4°C) and max 83.8°F (28.8°C).

Temperature

In Callahan, the average high-temperature in August is relatively the same as in July - a still moderately hot 83.8°F (28.8°C). In August, in Callahan, the average low-temperature is 50.7°F (10.4°C).

Heat index

The average heat index is calculated to 84°F (28.9°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, metabolic differences, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

August is the least humid month in Callahan, California, with an average relative humidity of 45%.

Rainfall

July and August are months with the least rain in Callahan when the rain falls for 3.1 days and typically aggregates up to 0.31" (8mm) of rain.

Snowfall

In Callahan snow does not fall in June through August.

Daylight

The average length of the day in Callahan is 13.8h.

Sunshine

In Callahan, the average sunshine in August is 12h.

UV index

In August, the average daily maximum UV index in Callahan is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Callahan?

In August, in Callahan, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 50.7°F (10.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 84°F (28.9°C).

What is the least humid month in Callahan?

August is the least humid month in Callahan, California, with an average relative humidity of 45%.

What is the average humidity in August in Callahan?

In Callahan, the average relative humidity in August is 45%.

How many days does it rain in August in Callahan?

In Callahan, during August, the rain falls for 3.1 days and regularly aggregates up to 0.31" (8mm) of precipitation.

What is the driest month in Callahan?

Months with the least rainfall are July and August Rain falls for 3.1 days and accumulates 0.31" (8mm) of rain.

Does it snow in Callahan in August?

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

When it does not snow in Callahan?

In Callahan, California, snow does not fall in June through August.

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

The average length of the day in August is 13.8h.

How long on average sun shines in August in Callahan?

In Callahan, California, the average sunshine in August is 12h.

What is the UV index reading in August in Callahan?

In Callahan, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Callahan, CA

Average temperature in August - Callahan, CA
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is December (41°F).

  • Average low temperature in August: 50.7°F

The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).

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Average pressure in August
Callahan, CA

Average pressure in August - Callahan, CA
  • Average pressure in August: 29.94"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is August (29.94").

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Average wind speed in August
Callahan, CA

Average wind speed in August - Callahan, CA
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in August
Callahan, CA

Average humidity in August - Callahan, CA
  • Average humidity in August: 45%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in August
Callahan, CA

Average rainfall in August - Callahan, CA
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is March (4.17").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in August
Callahan, CA

Average rainfall days in August - Callahan, CA
  • Average rainfall days in August: 3.1 days

The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is August (3.1 days).

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Average snowfall in August
Callahan, CA

Average snowfall in August - Callahan, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (14.02").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Callahan, CA

Average snowfall days in August - Callahan, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (11.2 days).
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
Callahan, CA

Average daylight in August / Average sunshine in August - Callahan, CA
  • Average daylight in August: 13.8h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in August: 12h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in August
Callahan, CA

Average sunshine days in August - Callahan, CA
  • Average sunshine days in August: 24.1 days

The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is March (10.9 days).

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Average UV index in August
Callahan, CA

Average UV index in August - Callahan, CA
  • Average UV index in August: 5

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

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Average cloud cover in August
Callahan, CA

Average cloud cover in August - Callahan, CA
  • Average cloud cover in August: 7

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in August
Callahan, CA

Average visibility in August - Callahan, CA
  • Average visibility in August: 6mi

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

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