August weather forecast
Decatur, NE

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Weather in August

The last month of the summer, August, is also a moderately hot month in Decatur, Nebraska, with an average temperature ranging between min 61.7°F (16.5°C) and max 82°F (27.8°C).

Temperature

August's weather displays an average high-temperature of a still warm 82°F (27.8°C), slightly varied from July's 83.8°F (28.8°C). An average low-temperature of 61.7°F (16.5°C) marks the nights throughout August.

Heat index

The heat index for August is calculated to be a hot 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In August, the rain falls for 13.8 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 117.6 rainfall days, and 21.89" (556mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 49min.
On the first day of August, sunrise is at 6:19 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:59 pm CDT.

Sunshine

In August, the average sunshine in Decatur is 9.8h.

UV index

The months with the highest UV index in Decatur are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

Decatur in August has an average high-temperature of 82°F (27.8°C) and an average low-temperature of 61.7°F (16.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity in Decatur is 76%.

How much does it rain in August?

In August, the rain falls for 13.8 days. Throughout August, 2.28" (58mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Decatur have in August?

In August, the average day length is 13h and 49min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:19 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:59 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August in Decatur is 9.8h.

When is the highest UV index?

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 Decatur?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Decatur, NE

Average temperature in August - Decatur, NE
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 61.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in August
Decatur, NE

Average pressure in August - Decatur, NE
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in August
Decatur, NE

Average wind speed in August - Decatur, NE
  • Average wind speed in August: 7.7mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in August
Decatur, NE

Average humidity in August - Decatur, NE
  • Average humidity in August: 76%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).

Average rainfall in August
Decatur, NE

Average rainfall in August - Decatur, NE
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in August
Decatur, NE

Average rainfall days in August - Decatur, NE
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in August
Decatur, NE

Average snowfall in August - Decatur, NE
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Decatur, NE

Average snowfall days in August - Decatur, NE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Decatur, NE

Average daylight in August / Average sunshine in August - Decatur, NE
  • 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 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Decatur, NE

Average sunshine days in August - Decatur, NE
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).

Average UV index in August
Decatur, NE

Average UV index in August - Decatur, NE
  • 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 February and December (UV index 1).

Average cloud cover in August
Decatur, NE

Average cloud cover in August - Decatur, NE
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in August
Decatur, NE

Average visibility in August - Decatur, NE
  • Average visibility in August: 6mi

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

Decatur, Nebraska, USA

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