August weather forecast
Trenton, IA

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Weather in August

August, the last month of the summer in Trenton, is also a moderately hot month, with an average temperature fluctuating between 81.7°F (27.6°C) and 63.3°F (17.4°C).

Temperature

With August's advent, Trenton sees an average high-temperature of a still moderately hot 81.7°F (27.6°C), subtly shifted from July's 82.4°F (28°C). Trenton observes an average low-temperature of 63.3°F (17.4°C) during August nights.

Heat index

In August, the heat index is estimated at a hot 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 hold particular significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Trenton, in August, during 13.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Trenton, during the entire year, the rain falls for 140.1 days and collects up to 29.92" (760mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August in Trenton, Iowa, is 13h and 46min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:22 pm. On the last day of August, in Trenton, sunrise is at 6:32 am and sunset at 7:40 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What is the average August temperature in Trenton?

The high-temperature, in August, in Trenton, records 81.7°F (27.6°C), while the low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in August in Trenton?

The average relative humidity in August in Trenton, Iowa, is 79%.

How much does it rain in Trenton in August?

In Trenton, Iowa, in August, during 13.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow in Trenton?

In Trenton, snow does not fall in May through September.

How many hours of daylight does Trenton have in August?

In Trenton, the average day length in August is 13h and 46min.

When are sunrise and sunset in August in Trenton?

On the first day of August, sunrise is at 6:03 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:40 pm CDT.

How many hours of sunshine does Trenton have in August?

The average sunshine duration in August is 9.9h.

When is the highest UV index in Trenton?

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

What is the UV index intensity in August in Trenton?

The average daily maximum UV index in August in Trenton 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
Trenton, IA

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

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in August
Trenton, IA

Average pressure in August - Trenton, 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 (29.9"Hg).

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Average wind speed in August
Trenton, IA

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

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 (6.9mph).

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Average humidity in August
Trenton, IA

Average humidity in August - Trenton, 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 (71%).

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Average rainfall in August
Trenton, IA

Average rainfall in August - Trenton, IA
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").

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Average rainfall days in August
Trenton, IA

Average rainfall days in August - Trenton, IA
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in August
Trenton, IA

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

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Trenton, IA

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

The month with the highest number of snowfall days is January (9.6 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
Trenton, IA

Average daylight in August / Average sunshine in August - Trenton, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in August
Trenton, IA

Average sunshine days in August - Trenton, IA
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in August
Trenton, IA

Average UV index in August - Trenton, 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).

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Average cloud cover in August
Trenton, IA

Average cloud cover in August - Trenton, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in August
Trenton, IA

Average visibility in August - Trenton, 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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Trenton, Iowa, USA

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