August weather forecast
Plymouth, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Plymouth, Iowa, with an average temperature ranging between max 77.5°F (25.3°C) and min 59.9°F (15.5°C).

Temperature

With the onset of August, the average high-temperature stands at a still warm 77.5°F (25.3°C), closely aligned with July's 79.3°F (26.3°C). Throughout August nights, Plymouth registers an average low-temperature of 59.9°F (15.5°C).

Humidity

The average relative humidity in August in Plymouth, Iowa, is 82%.

Rainfall

In Plymouth, in August, it is raining for 12.6 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 129.5 rainfall days, and 25.98" (660mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 54min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:33 pm. On the last day of August, in Plymouth, sunrise is at 6:36 am and sunset at 7:48 pm CDT.

Sunshine

July and August, with an average of 9.7h of sunshine, are months with the most sunshine in Plymouth.

UV index

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in August translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the average August temperature in Plymouth?

The average high-temperature, in August, in Plymouth, is 77.5°F (25.3°C), while the average low-temperature is 59.9°F (15.5°C).

What is the average humidity in August in Plymouth?

In Plymouth, the average relative humidity in August is 82%.

How much does it rain in Plymouth in August?

In Plymouth, during August, the rain falls for 12.6 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Plymouth?

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

How many hours of daylight does Plymouth have in August?

In August, the average day length in Plymouth, Iowa, is 13h and 54min.

What time are sunrise and sunset in August in Plymouth?

On the first day of August in Plymouth, sunrise is at 6:03 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:48 pm CDT.

What are the months with the most sunshine in Plymouth?

The months with the most sunshine are July and August, with an average of 9.7h of sunshine.

How long on average sun shines in August in Plymouth?

In Plymouth, Iowa, the average sunshine duration in August is 9.7h.

What is the UV index reading in August in Plymouth?

The average daily maximum UV index in August in Plymouth, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Plymouth, IA

Average temperature in August - Plymouth, IA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in August
Plymouth, IA

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

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Plymouth, IA

Average wind speed in August - Plymouth, IA
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in August
Plymouth, IA

Average humidity in August - Plymouth, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Plymouth, IA

Average rainfall in August - Plymouth, IA
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in August
Plymouth, IA

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

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).

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Average snowfall in August
Plymouth, IA

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

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Plymouth, IA

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

The month with the highest number of snowfall days is January (12.7 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
Plymouth, IA

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

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

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in August
Plymouth, IA

Average sunshine days in August - Plymouth, IA
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in August
Plymouth, IA

Average UV index in August - Plymouth, 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 and December (UV index 1).

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Average cloud cover in August
Plymouth, IA

Average cloud cover in August - Plymouth, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in August
Plymouth, IA

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

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

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Plymouth, Iowa, USA

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