August weather forecast
Colfax, IA

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Weather in August

The last month of the summer, August, is another warm month in Colfax, Iowa, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 80.8°F (27.1°C).

Temperature

As July turns into August, the average high-temperatures rest at a still moderately hot 80.8°F (27.1°C), showing a minor variation from the prior month. Colfax's temperature tends to fall to an average low of 62.2°F (16.8°C) during the nights of August.

Heat index

Throughout August, the heat index is computed to be a tropical 86°F (30°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In August, the average relative humidity in Colfax is 80%.

Rainfall

In August, in Colfax, the rain falls for 9.8 days. Throughout August, 0.91" (23mm) of precipitation is accumulated. Throughout the year, there are 104.4 rainfall days, and 10.71" (272mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Colfax, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:30 pm. On the last day of August, in Colfax, Iowa, sunrise is at 6:38 am and sunset at 7:47 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 in August translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Colfax?

The high-temperature, in August, in Colfax, is 80.8°F (27.1°C), while the low-temperature averages to 62.2°F (16.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 86°F (30°C).

What is the average humidity in August in Colfax?

In August, the average relative humidity in Colfax is 80%.

How many days does it rain in August in Colfax?

In Colfax, Iowa, in August, it is raining for 9.8 days, with typically 0.91" (23mm) of accumulated precipitation.

When it does not snow in Colfax?

June through September are months without snowfall in Colfax.

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

In August, the average day length in Colfax is 13h and 48min.

What time are sunrise and sunset in August in Colfax?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:30 pm. On the last day of the month, in Colfax, Iowa, sunrise is at 6:38 am and sunset at 7:47 pm CDT.

How many hours of sunshine does Colfax have in August?

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

What is the month with the highest UV index in Colfax?

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

What is the UV index intensity in August in Colfax?

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

Average temperature in August - Colfax, IA
  • Average high temperature in August: 80.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in August
Colfax, IA

Average pressure in August - Colfax, IA
  • Average pressure in August: 29.97"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
Colfax, IA

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

The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in August
Colfax, IA

Average humidity in August - Colfax, IA
  • Average humidity in August: 80%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Colfax, IA

Average rainfall in August - Colfax, IA
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in August
Colfax, IA

Average rainfall days in August - Colfax, IA
  • Average rainfall days in August: 9.8 days

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in August
Colfax, IA

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

The month with the highest snowfall is January (1.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Colfax, IA

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

The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 12min).
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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in August
Colfax, IA

Average sunshine days in August - Colfax, IA
  • Average sunshine days in August: 17.5 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (12.1 days).

Average UV index in August
Colfax, IA

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

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

Average cloud cover in August
Colfax, IA

Average cloud cover in August - Colfax, 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 September (Cloud cover 29).

Average visibility in August
Colfax, IA

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

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

Colfax, Iowa, USA

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