August weather forecast
Yorktown, IA

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Weather in August

August, the last month of the summer in Yorktown, is also a moderately hot month, with an average temperature ranging between max 82.2°F (27.9°C) and min 63.7°F (17.6°C).

Temperature

Yorktown marks the onset of August with an average high-temperature of a still warm 82.2°F (27.9°C), a subtle shift from July's 83.8°F (28.8°C). August brings an average low-temperature of 63.7°F (17.6°C) to Yorktown.

Heat index

The heat index in August is appraised at a tropical 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Yorktown, during August, the rain falls for 12.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Yorktown, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.

Snowfall

May through September are months without snowfall in Yorktown.

Daylight

The average length of the day in August in Yorktown, Iowa, is 13h and 44min.
On the first day of August, sunrise is at 6:18 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:53 pm CDT.

Sunshine

In Yorktown, Iowa, the average sunshine in August is 10h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during August translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the temperature in August in Yorktown?

The high-temperature, in August, in Yorktown, is 82.2°F (27.9°C), while the low-temperature averages to 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the average humidity in August in Yorktown?

In August, the average relative humidity in Yorktown is 79%.

How much does it rain in Yorktown in August?

In Yorktown, during August, the rain falls for 12.6 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Yorktown?

May through September are months without snowfall in Yorktown, Iowa.

How many hours of daylight does Yorktown have in August?

In Yorktown, Iowa, the average day length in August is 13h and 44min.

When are sunrise and sunset in August in Yorktown?

In August, on the first day of the month, sunrise is at 6:18 am and sunset at 8:35 pm. On the last day of the month, in Yorktown, Iowa, sunrise is at 6:47 am and sunset at 7:53 pm CDT.

How long on average sun shines in August in Yorktown?

The average sunshine duration in August in Yorktown, Iowa, is 10h.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Yorktown, Iowa.

What is the UV index intensity in August in Yorktown?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Yorktown, IA

Average temperature in August - Yorktown, IA
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

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Average pressure in August
Yorktown, IA

Average pressure in August - Yorktown, IA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in August
Yorktown, IA

Average wind speed in August - Yorktown, IA
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in August
Yorktown, IA

Average humidity in August - Yorktown, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
Yorktown, IA

Average rainfall in August - Yorktown, IA
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in August
Yorktown, IA

Average rainfall days in August - Yorktown, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in August
Yorktown, IA

Average snowfall in August - Yorktown, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Yorktown, IA

Average snowfall days in August - Yorktown, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Yorktown, IA

Average daylight in August / Average sunshine in August - Yorktown, IA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • 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 36min).

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Average sunshine days in August
Yorktown, IA

Average sunshine days in August - Yorktown, IA
  • Average sunshine days in August: 15 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in August
Yorktown, IA

Average UV index in August - Yorktown, IA
  • 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).

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Average cloud cover in August
Yorktown, IA

Average cloud cover in August - Yorktown, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in August
Yorktown, IA

Average visibility in August - Yorktown, IA
  • 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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Yorktown, Iowa, USA

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