August weather forecast
Grand Island, NE

Share

Weather in August

August in Grand Island, Nebraska, is synonymous with warm nights and scorching days. The city pulsates with an infectious summer energy, rippling through local events and festivals. However, a modicum of relief occurs with the slight dip in temperatures as August progresses. Dry weather is the norm with rainfall reduced to 1.85" (47mm), encouraging outdoor gatherings and water activities. As August turns the corner, Grand Island gears up to welcome the dazzling colors of fall in September.

Temperature

During August, Grand Island observes a subtle ascent to a moderately hot 85.1°F (29.5°C) from July's 86.7°F (30.4°C) in the average high-temperature. Grand Island, amidst the high August temperatures, experiences a substantial shift to an average nighttime low of 62.6°F (17°C).

Heat index

Throughout August, the heat index is computed to be a hot 93.2°F (34°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 extremely significant for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

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

Rainfall

In August, the rain falls for 13.2 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in Grand Island, there are 109.5 rainfall days, and 19.37" (492mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Grand Island.

Daylight

The average length of the day in August in Grand Island is 13h and 46min.
On the first day of August, sunrise is at 6:30 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:06 pm CDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
[Resources]

Frequently asked questions

How hot does it get in Grand Island in August?

In Grand Island, 85.1°F (29.5°C) is the average high-temperature and 62.6°F (17°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 93.2°F (34°C).

What is the average humidity in August in Grand Island?

The average relative humidity in August in Grand Island, Nebraska, 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?

In Grand Island, Nebraska, snow does not fall in June through September.

What is the average length of the day in August in Grand Island?

In Grand Island, the average day length in August is 13h and 46min.

When are sunrise and sunset in August in Grand Island?

On the first day of August in Grand Island, Nebraska, sunrise is at 6:30 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:06 pm CDT.

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

The average sunshine duration in August in Grand Island is 10.1h.

What is the month with the highest UV index in Grand Island?

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

What is the UV index reading in August in Grand Island?

The average daily maximum UV index in August in Grand Island, Nebraska, 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
Grand Island, NE

Average temperature in August - Grand Island, NE
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).

[Resources]

Average pressure in August
Grand Island, NE

Average pressure in August - Grand Island, NE
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

[Resources]

Average wind speed in August
Grand Island, NE

Average wind speed in August - Grand Island, NE
  • Average wind speed in August: 8.5mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).

[Resources]

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%).

[Resources]

Average rainfall in August
Grand Island, NE

Average rainfall in August - Grand Island, NE
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.51").

[Resources]

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).

[Resources]

Average snowfall in August
Grand Island, NE

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

The month with the highest snowfall is December (3.23").
The months with the least snowfall are June, July, August and September (0").

[Resources]

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).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

[Resources]

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).

[Resources]

Average UV index in August
Grand Island, NE

Average UV index in August - Grand Island, 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 January, February, November and December (UV index 2).

[Resources]

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).

[Resources]

Average visibility in August
Grand Island, NE

Average visibility in August - Grand Island, 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).

[Resources]

Grand Island, Nebraska, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location