August weather forecast
Lockport, IL

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Weather in August

August, the last month of the summer in Lockport, is another warm month, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 63.9°F (17.7°C).

Temperature

With the onset of August, the average high-temperature stands at a still moderately hot 80.4°F (26.9°C), closely aligned with July's 82°F (27.8°C). Lockport records an average low of 63.9°F (17.7°C) throughout the nights in August.

Humidity

In Lockport, the average relative humidity in August is 79%.

Rainfall

In Lockport, in August, it is raining for 10.6 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 103.8 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Lockport, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

Sunshine

The month with the most sunshine is August, with an average of 9.9h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 during August translates into the following guidance:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What is the average August temperature in Lockport?

During August, Lockport experiences an average high-temperature of 80.4°F (26.9°C) and a low-temperature of 63.9°F (17.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in July is calculated to be 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How many days does it rain in August?

In Lockport, in August, it is raining for 10.6 days, with typically 0.98" (25mm) of accumulated precipitation.

When it does not snow in Lockport?

May through October are months without snowfall.

How many hours of daylight does Lockport have in August?

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

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:47 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

What month has the most sunshine?

With an average of 9.9h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

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

How high is the UV index in August?

In Lockport, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe 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
Lockport, IL

Average temperature in August - Lockport, IL
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average pressure in August
Lockport, IL

Average pressure in August - Lockport, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Lockport, IL

Average wind speed in August - Lockport, IL
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in August
Lockport, IL

Average humidity in August - Lockport, IL
  • Average humidity in August: 79%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Lockport, IL

Average rainfall in August - Lockport, IL
  • Average rainfall in August: 0.98"

The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in August
Lockport, IL

Average rainfall days in August - Lockport, IL
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in August
Lockport, IL

Average snowfall in August - Lockport, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Lockport, IL

Average snowfall days in August - Lockport, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Lockport, IL

Average daylight in August / Average sunshine in August - Lockport, IL
  • 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 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Lockport, IL

Average sunshine days in August - Lockport, IL
  • Average sunshine days in August: 16 days

The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is July (13.8 days).

Average UV index in August
Lockport, IL

Average UV index in August - Lockport, IL
  • 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
Lockport, IL

Average cloud cover in August - Lockport, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Lockport, IL

Average visibility in August - Lockport, IL
  • Average visibility in August: 6mi

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

Lockport, Illinois, USA

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