Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Callao measures an average high-temperature of a still moderately hot 82.9°F (28.3°C) in August, nearly consistent with the preceding month. An average low-temperature of 64.4°F (18°C) marks the nights throughout August.Heat index
August's average heat index is appraised at a tropical 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In Callao, Missouri, the average relative humidity in August is 78%.Rainfall
In Callao, in August, it is raining for 12.8 days, with typically 2.52" (64mm) of accumulated precipitation. In Callao, during the entire year, the rain falls for 134.7 days and collects up to 26.38" (670mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 41min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:23 pm. On the last day of August, in Callao, Missouri, sunrise is at 6:38 am and sunset at 7:42 pm CDT.
Sunshine
In Callao, the average sunshine in August is 10h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 6 in August leads to these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Callao have in August?
When are sunrise and sunset in August in Callao?
How long on average sun shines in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Callao, MO
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in August: 64.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in August
Callao, MO
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Callao, MO
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in August
Callao, MO
- Average humidity in August: 78%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Callao, MO
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in August
Callao, MO
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in August
Callao, MO
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.86").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Callao, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Callao, MO
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 0min
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 24min).
Average sunshine days in August
Callao, MO
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in August
Callao, MO
- 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, November and December (UV index 2).
Average cloud cover in August
Callao, MO
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in August
Callao, MO
- 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).
Callao, Missouri, USA
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