April weather forecast
Lockport, IL

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Weather in April

April in Lockport, Illinois, is a refreshing spring month, with an average temperature ranging between max 57.6°F (14.2°C) and min 41.5°F (5.3°C).

Temperature

Lockport's April weather brings a rise in high-temperatures, moving from a frosty 46°F (7.8°C) in March to a mild 57.6°F (14.2°C). Lockport experiences a mean temperature of 41.5°F (5.3°C) during April nights.

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Lockport, in April, during 11.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 103.8 rainfall days, and 10.08" (256mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Lockport are January through April, November and December. April is the last month it regularly snows in Lockport. During 1.4 snowfall days, in April, Lockport aggregates 0.51" (13mm) of snow. In Lockport, during the entire year, snow falls for 30.8 days and aggregates up to 4.02" (102mm) of snow.

Daylight

In Lockport, the average length of the day in April is 13h and 22min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:49 am and sunset at 7:49 pm CDT.

Sunshine

The average sunshine in April is 7.5h.

UV index

In Lockport, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 3 during April morphs into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What are the temperatures in Lockport in April?

In April, the average high-temperature and low-temperature in Lockport, Illinois, are 57.6°F (14.2°C) and 41.5°F (5.3°C) respectively.

What is the average humidity in April in Lockport?

In Lockport, Illinois, the average relative humidity in April is 75%.

How much does it rain in Lockport in April?

In Lockport, in April, during 11.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

What is the last month it snows in Lockport?

April is the last month it regularly snows in Lockport. During 1.4 snowfall days, in April, Lockport aggregates 0.51" (13mm) of snow.

How many hours of daylight does Lockport have in April?

The average day length in April in Lockport, Illinois, is 13h and 22min.

When is the sunrise / sunset in April in Lockport?

In April, on the first day of the month, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:49 pm CDT.

How many hours of sunshine does Lockport have in April?

In April, the average sunshine duration is 7.5h.

What is the UV index intensity in April in Lockport?

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Lockport, IL

Average temperature in April - Lockport, IL
  • Average high temperature in April: 57.6°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 April: 41.5°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).

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Average pressure in April
Lockport, IL

Average pressure in April - Lockport, IL
  • Average pressure in April: 29.95"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).

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Average wind speed in April
Lockport, IL

Average wind speed in April - Lockport, IL
  • Average wind speed in April: 9.6mph

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).

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Average humidity in April
Lockport, IL

Average humidity in April - Lockport, IL
  • Average humidity in April: 75%

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

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Average rainfall in April
Lockport, IL

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

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

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Average rainfall days in April
Lockport, IL

Average rainfall days in April - Lockport, IL
  • Average rainfall days in April: 11.5 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).

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Average snowfall in April
Lockport, IL

Average snowfall in April - Lockport, IL
  • Average snowfall in April: 0.51"

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").

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Average snowfall days in April
Lockport, IL

Average snowfall days in April - Lockport, IL
  • Average snowfall days in April: 1.4 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).

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

Average daylight in April / Average sunshine in April - Lockport, IL
  • Average daylight in April: 13h and 2min

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 April: 7h and 3min

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).

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Average sunshine days in April
Lockport, IL

Average sunshine days in April - Lockport, IL
  • Average sunshine days in April: 15.8 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).

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Average UV index in April
Lockport, IL

Average UV index in April - Lockport, IL
  • Average UV index in April: 3

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).

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Average cloud cover in April
Lockport, IL

Average cloud cover in April - Lockport, IL
  • Average cloud cover in April: 50

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

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Average visibility in April
Lockport, IL

Average visibility in April - Lockport, IL
  • Average visibility in April: 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).

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Lockport, Illinois, USA

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