August weather forecast
Thornburg, IA

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Weather in August

August, the last month of the summer in Thornburg, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 62.8°F (17.1°C).

Temperature

Thornburg, Iowa, marks the arrival of August with an average high-temperature of a still warm 81.1°F (27.3°C), hardly different from July's 82°F (27.8°C). An average low-temperature of 62.8°F (17.1°C) is recorded in the month of August in Thornburg.

Heat index

August's heat index is appraised at a tropical 86°F (30°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

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

Rainfall

In Thornburg, during August, the rain falls for 12.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.

Snowfall

In Thornburg, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:26 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:43 pm CDT.

Sunshine

The average sunshine in August in Thornburg is 9.9h.

UV index

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 in August translates into these instructions:
Ensure safety - Recommendations to avert sunburn are presented. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What are the temperatures in Thornburg in August?

In Thornburg, 81.1°F (27.3°C) is the average high-temperature and 62.8°F (17.1°C) is the average low-temperature during August. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is appraised at 86°F (30°C).

What is the average humidity in August in Thornburg?

The average relative humidity in August is 79%.

How much does it rain in Thornburg in August?

In Thornburg, Iowa, during August, the rain falls for 12.3 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow in Thornburg?

June through September are months without snowfall in Thornburg, Iowa.

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

The average day length in August in Thornburg, Iowa, is 13h and 47min.

When is the sunrise / sunset in August in Thornburg?

On the first day of August, sunrise is at 6:05 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:43 pm CDT.

How long on average sun shines in August in Thornburg?

In August, the average sunshine duration in Thornburg, Iowa, is 9.9h.

What is the UV index intensity in August in Thornburg?

In Thornburg, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium 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
Thornburg, IA

Average temperature in August - Thornburg, IA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in August
Thornburg, IA

Average pressure in August - Thornburg, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Thornburg, IA

Average wind speed in August - Thornburg, IA
  • Average wind speed in August: 6.9mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in August
Thornburg, IA

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

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

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Average rainfall in August
Thornburg, IA

Average rainfall in August - Thornburg, IA
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in August
Thornburg, IA

Average rainfall days in August - Thornburg, IA
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in August
Thornburg, IA

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Thornburg, IA

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

The month with the highest number of snowfall days is January (9.5 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
Thornburg, IA

Average daylight in August / Average sunshine in August - Thornburg, 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 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in August
Thornburg, IA

Average sunshine days in August - Thornburg, IA
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in August
Thornburg, IA

Average UV index in August - Thornburg, IA
  • Average UV index in August: 5

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

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Average cloud cover in August
Thornburg, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

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Average visibility in August
Thornburg, IA

Average visibility in August - Thornburg, IA
  • Average visibility in August: 6mi

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

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Thornburg, Iowa, USA

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