August weather forecast
Annapolis, MO

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Weather in August

The last month of the summer, August, is another hot month in Annapolis, Missouri, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 65.8°F (18.8°C).

Temperature

Stepping into August, Annapolis records an average high-temperature of a still hot 87.8°F (31°C), almost consistent with July. A significant drop from the day's peak to an average low-temperature of 65.8°F (18.8°C) is noted during the nights in August in Annapolis, Missouri.

Heat index

The average heat index in August is evaluated at a very hot 102.2°F (39°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Annapolis, the average relative humidity in August is 75%.

Rainfall

In Annapolis, during August, the rain falls for 14.3 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Annapolis, there are 136.8 rainfall days, and 23.35" (593mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:33 am and sunset at 7:32 pm CDT.

Sunshine

In Annapolis, Missouri, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

How hot is August in Annapolis?

In Annapolis, 87.8°F (31°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 102.2°F (39°C).

What is the average humidity in August in Annapolis?

The average relative humidity in August in Annapolis, Missouri, is 75%.

How many days does it rain in August in Annapolis?

In Annapolis, in August, during 14.3 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Annapolis?

In Annapolis, Missouri, snow does not fall in April through October.

How many hours of daylight does Annapolis have in August?

In Annapolis, the average day length in August is 13h and 33min.

When are sunrise and sunset in August in Annapolis?

On the first day of August in Annapolis, sunrise is at 6:07 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:32 pm CDT.

How long on average sun shines in August in Annapolis?

In Annapolis, Missouri, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Annapolis?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August in Annapolis?

The average daily maximum UV index in August in Annapolis is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Annapolis, MO

Average temperature in August - Annapolis, MO
  • Average high temperature in August: 87.8°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in August
Annapolis, MO

Average pressure in August - Annapolis, 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 (29.93"Hg).

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Average wind speed in August
Annapolis, MO

Average wind speed in August - Annapolis, MO
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in August
Annapolis, MO

Average humidity in August - Annapolis, MO
  • Average humidity in August: 75%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Annapolis, MO

Average rainfall in August - Annapolis, MO
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is April (3.03").
The driest months (with the least rainfall) are September and December (1.26").

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Average rainfall days in August
Annapolis, MO

Average rainfall days in August - Annapolis, MO
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is July (15.7 days).
The months with the least rainy days are January and December (8.1 days).

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Average snowfall in August
Annapolis, MO

Average snowfall in August - Annapolis, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Annapolis, MO

Average snowfall days in August - Annapolis, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.8 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
Annapolis, MO

Average daylight in August / Average sunshine in August - Annapolis, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Annapolis, MO

Average sunshine days in August - Annapolis, MO
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12 days).

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Average UV index in August
Annapolis, MO

Average UV index in August - Annapolis, MO
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Annapolis, MO

Average cloud cover in August - Annapolis, MO
  • Average cloud cover in August: 30

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in August
Annapolis, MO

Average visibility in August - Annapolis, MO
  • Average visibility in August: 5mi

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

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Annapolis, Missouri, USA

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