Monthly weather forecast and climate
Pearl City, IL

The coldest month is January, with an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 10°F (-12.2°C). January is the month with the least rainfall, with 1.1" (29.2mm) of accumulated precipitation.
Weather in January »
In Pearl City, Illinois, in February, the average high-temperature is 32°F (0°C), and the average low-temperature is 16°F (-8.9°C). Throughout February, in Pearl City, 1.4" (35.6mm) of precipitation is accumulated.
Weather in February »
In March, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 27°F (-2.8°C). In Pearl City, in March, 2.4" (59.7mm) of precipitation is typically accumulated.
Weather in March »
The average high-temperature, is 57°F (13.9°C), while the average low-temperature is 36°F (2.2°C). During April, Pearl City regularly aggregates up to 3.5" (89.4mm) of precipitation.
Weather in April »
The average high-temperature, in Pearl City, is 70°F (21.1°C), while the average low-temperature is 48°F (8.9°C). In Pearl City, in May, 3.8" (96.8mm) of precipitation is typically accumulated.
Weather in May »
In Pearl City, the average high-temperature is 79°F (26.1°C), and the average low-temperature is 57°F (13.9°C). June is the month with the most rainfall, with 4.6" (118.1mm) of accumulated precipitation.
Weather in June »
The warmest month is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 61°F (16.1°C). During July, Pearl City regularly aggregates up to 3.2" (80.5mm) of precipitation.
Weather in July »
The average high-temperature, in August, is 81°F (27.2°C), while the average low-temperature is 59°F (15°C). Throughout August, 4.4" (110.5mm) of precipitation is accumulated.
Weather in August »
In Pearl City, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 50°F (10°C). Throughout September, in Pearl City, Illinois, 3.8" (96.5mm) of precipitation is accumulated.
Weather in September »
In Pearl City, the average high-temperature is 61°F (16.1°C), and the average low-temperature is 39°F (3.9°C). During October, Pearl City regularly aggregates up to 2.7" (68.6mm) of precipitation.
Weather in October »
In November, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 28°F (-2.2°C). During November, Pearl City regularly aggregates up to 2.7" (68.3mm) of precipitation.
Weather in November »
In December, in Pearl City, the average high-temperature is 30°F (-1.1°C), and the average low-temperature is 16°F (-8.9°C). In Pearl City, 1.6" (40.9mm) of precipitation is typically accumulated.
Weather in December »

What is the coldest month in Pearl City?

January is the coldest month, with an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 10°F (-12.2°C).

How much does it rain in Pearl City?

During the entire year, Pearl City aggregates up to 35.2" (894.1mm) of precipitation.

What is the driest month in Pearl City?

The month with the least rainfall in Pearl City, Illinois, is January when 1.1" (29.2mm) of precipitation is typically aggregated.

What is the wettest month in Pearl City?

June is the month with the most rainfall in Pearl City, Illinois, with 4.6" (118.1mm) of accumulated precipitation.

When are the longest days in Pearl City?

The month with the longest days in Pearl City, Illinois, is June, with an average of 15.2h of daylight.

What is the warmest month in Pearl City?

The warmest month in Pearl City is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 61°F (16.1°C).

What is the month with the shortest days in Pearl City?

December has the shortest days of the year, with an average of 9.1h of daylight.
Average rainfall - Pearl City, IL
Average daylight - Pearl City, IL

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).

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