August weather forecast
Lucas, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Lucas, Iowa, with an average temperature fluctuating between 81.7°F (27.6°C) and 62.8°F (17.1°C).

Temperature

Lucas experiences an average high-temperature of a still moderately hot 81.7°F (27.6°C) in August, marking an insignificant shift from 83.1°F (28.4°C) in July. During August, Lucas's temperature falls to a steady low-temperature average of 62.8°F (17.1°C).

Heat index

The average heat index in August is evaluated at a hot 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Lucas, during August, the rain falls for 12.7 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Lucas, during the entire year, the rain falls for 131.1 days and collects up to 25.71" (653mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Lucas is 13h and 46min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:47 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

In August, in Lucas, the average high-temperature is 81.7°F (27.6°C), and the average low-temperature is 62.8°F (17.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

How much does it rain in August?

In Lucas, in August, during 12.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Lucas have in August?

The average day length in August is 13h and 46min.

What time are sunrise and sunset in August in Lucas?

On the first day of August, sunrise is at 6:10 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:47 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.7h.

What is the month with the highest UV index?

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

What is the UV index intensity in August in Lucas?

In Lucas, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
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
Lucas, IA

Average temperature in August - Lucas, IA
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in August
Lucas, IA

Average pressure in August - Lucas, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Lucas, IA

Average wind speed in August - Lucas, IA
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in August
Lucas, IA

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

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Lucas, IA

Average rainfall in August - Lucas, IA
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in August
Lucas, IA

Average rainfall days in August - Lucas, IA
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in August
Lucas, IA

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

The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Lucas, IA

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

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Lucas, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in August
Lucas, IA

Average sunshine days in August - Lucas, IA
  • Average sunshine days in August: 16 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in August
Lucas, IA

Average UV index in August - Lucas, IA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Lucas, IA

Average cloud cover in August - Lucas, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in August
Lucas, IA

Average visibility in August - Lucas, IA
  • Average visibility in August: 5mi

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

Lucas, Iowa, USA

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