August weather forecast
Plymouth, IA

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Weather in August

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

Temperature

The commencement of August introduces an average high-temperature of a still warm 77.5°F (25.3°C), closely mirroring the preceding month. In Plymouth, August nights witness a steady temperature drop to a mild 59.9°F (15.5°C).

Humidity

The average relative humidity in August 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

In August, the average length of the day is 13h and 54min.
On the first day of August, 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.

Sunshine

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

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in August interprets into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Plymouth in August?

In Plymouth, 77.5°F (25.3°C) is the average high-temperature and 59.9°F (15.5°C) is the average low-temperature during August.

What is the average humidity in August?

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

How many days does it rain in August in Plymouth?

In Plymouth, Iowa, in August, during 12.6 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Plymouth have in August?

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

When is the sunrise / sunset in August?

On the first day of August, 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 is the month with the most sunshine?

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, the average sunshine duration in August is 9.7h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Plymouth, Iowa, USA

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