August weather forecast and climate
Grand Island, NE

Weather in August

The last month of the summer, August, is another warm month in Grand Island, Nebraska, with average temperature varying between 62.6°F (17°C) and 85.1°F (29.5°C).

Temperature

In Grand Island, Nebraska, the average high-temperature is almost the same as in July - a warm 85.1°F (29.5°C). In Grand Island, in August, the average low-temperature is 62.6°F (17°C).

Heat index

In August, the average heat index is calculated to a hot 92.5°F (33.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like clothing, wind, pregnancy, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity is 69%.

Rainfall

In Grand Island, during 13.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Grand Island, during the entire year, the rain falls for 109.5 days and collects up to 19.37" (492mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Grand Island is 13.7h.

Sunshine

In Grand Island, the average sunshine in August is 10.1h.

UV index

Months with the highest UV index in Grand Island are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Grand Island?

In August, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 62.6°F (17°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, is appraised at 92.5°F (33.6°C).

What is the average humidity in August in Grand Island?

In Grand Island, the average relative humidity in August is 69%.

How many days does it rain in August in Grand Island?

In Grand Island, in August, during 13.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Grand Island?

June through September are months without snowfall in Grand Island.

How many hours of daylight does Grand Island have in August?

In Grand Island, Nebraska, the average length of the day in August is 13.7h.

How long on average sun shines in August in Grand Island?

In Grand Island, Nebraska, the average sunshine in August is 10.1h.

What are the months with the highest UV index in Grand Island?

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

How high is the UV index in August in Grand Island?

In Grand Island, Nebraska, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.

Average temperature in August
Grand Island, NE

Average temperature in August - Grand Island, NE
  • Average high temperature in August: 29.5°C

The warmest month (with the highest average high temperature) is July (30.4°C).
The month with the lowest average high temperature is January (0.8°C).

  • Average low temperature in August: 17°C

The month with the highest average low temperature is July (18.8°C).
The coldest month (with the lowest average low temperature) is January (-7.2°C).

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Average pressure in August
Grand Island, NE

Average pressure in August - Grand Island, NE
  • Average pressure in August: 1013.8mbar

The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1010.9mbar).

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Average wind speed in August
Grand Island, NE

Average wind speed in August - Grand Island, NE
  • Average wind speed in August: 13.6km/h

The windiest month (with the highest average wind speed) is April (18.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).

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Average humidity in August
Grand Island, NE

Average humidity in August - Grand Island, NE
  • Average humidity in August: 69%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (61%).

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Average rainfall in August
Grand Island, NE

Average rainfall in August - Grand Island, NE
  • Average rainfall in August: 47mm

The wettest month (with the highest rainfall) is May (83mm).
The driest month (with the least rainfall) is January (13mm).

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Average rainfall days in August
Grand Island, NE

Average rainfall days in August - Grand Island, NE
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (1.7 days).

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Average snowfall in August
Grand Island, NE

Average snowfall in August - Grand Island, NE
  • Average snowfall in August: 0mm

The month with the highest snowfall is December (82mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in August
Grand Island, NE

Average snowfall days in August - Grand Island, NE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.3 days).
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
Grand Island, NE

Average daylight in August / Average sunshine in August - Grand Island, NE
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10.1h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 5.4h).

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Average sunshine days in August
Grand Island, NE

Average sunshine days in August - Grand Island, NE
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (13.6 days).

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Average UV index in August
Grand Island, NE

Average UV index in August - Grand Island, NE
  • Average UV index in August: 6

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

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Average cloud cover in August
Grand Island, NE

Average cloud cover in August - Grand Island, NE
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in August
Grand Island, NE

Average visibility in August - Grand Island, NE
  • Average visibility in August: 9km

Months with the highest visibility are June, October and November (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September and December (9km).

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