Climate and monthly weather forecastPearl, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Pearl, Illinois, with an average temperature varying between 34.3°F (1.3°C) and 21.9°F (-5.6°C). Temperature readings reach their annual highs in January, averaging 34.3°F (1.3°C) and a minimum average of 21.9°F (-5.6°C). Weather in January »Weather in February
February, the last month of the winter in Pearl, is another cold month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 25.3°F (-3.7°C). In February, the average high-temperature registers at a still cold 39.4°F (4.1°C), nearly identical to January's 34.3°F (1.3°C). Weather in February »Weather in March
March, the first month of the spring in Pearl, is a fresh month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 52.2°F (11.2°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a cold 39.4°F (4.1°C) to a fresh 52.2°F (11.2°C). Weather in March »Weather in April
April in Pearl, Illinois, is a refreshing spring month, with an average temperature varying between 46.2°F (7.9°C) and 63.7°F (17.6°C). As April arrives, a rise in the average high-temperature is observed, moving from a cool 52.2°F (11.2°C) in March to an enjoyable 63.7°F (17.6°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Pearl, Illinois, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 73.2°F (22.9°C). May's arrival brings a change in high-temperatures, moving from a comfortable 63.7°F (17.6°C) in April to a pleasant 73.2°F (22.9°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Pearl, Illinois, with an average temperature fluctuating between 64.6°F (18.1°C) and 82°F (27.8°C). June's onset brings a subtle temperature rise, moving from a pleasant 73.2°F (22.9°C) in May to a warm 82°F (27.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Pearl, Illinois, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 84.2°F (29°C). In Pearl, temperatures reach their average annual highs in July, measuring 84.2°F (29°C) and a minimum average of 67.1°F (19.5°C). July's average heat index is evaluated at a fiery hot 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Pearl, Illinois, with temperature in the range of an average high of 83.5°F (28.6°C) and an average low of 65.5°F (18.6°C). Pearl marks the onset of August with an average high-temperature of a still moderately hot 83.5°F (28.6°C), subtly divergent from July's 84.2°F (29°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Pearl, Illinois, with an average temperature fluctuating between 78.1°F (25.6°C) and 59.2°F (15.1°C). In Pearl, entering September brings a subtle temperature decrement, reducing from August's warm 83.5°F (28.6°C) to a still moderately hot 78.1°F (25.6°C). Weather in September »Weather in October
October, like September, in Pearl, Illinois, is another comfortable autumn month, with an average temperature ranging between min 47.8°F (8.8°C) and max 64.4°F (18°C). With October's arrival, Pearl sees a decrease in average high-temperatures, moving from a moderately hot 78.1°F (25.6°C) in September to a comfortable 64.4°F (18°C). Weather in October »Weather in November
November, the last month of the autumn in Pearl, is also a fresh month, with an average temperature ranging between min 36.5°F (2.5°C) and max 51.6°F (10.9°C). Pearl's November weather shows a moderate shift in high-temperatures, falling from October's enjoyable 64.4°F (18°C) to a cool 51.6°F (10.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Pearl, Illinois, with an average temperature fluctuating between 40.1°F (4.5°C) and 28.4°F (-2°C). As December commences, the average high-temperature shows a reduction, transitioning from a fresh 51.6°F (10.9°C) in November to a cold 40.1°F (4.5°C). Weather in December »Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest period tends to be January, when average temperatures fluctuate between a high of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).
January and November are months with the least rain when the rain falls for 5.5 days and typically aggregates up to 0.83" (21mm) of rain.
Throughout the year, there are 127.3 rainfall days, and 17.24" (438mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
In Pearl, during the entire year, snow falls for 22.5 days and aggregates up to 5.08" (129mm) of snow.
With an average of 4.4h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 6.4 days and typically aggregates up to 1.69" (43mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
In Pearl, snow does not fall in May through October.
The month with the most rainfall in Pearl is June, when the rain falls for 13.6 days and typically aggregates up to 2.44" (62mm) of precipitation.
June has the longest days of the year, with an average of 14h and 54min of daylight.
June has the most sunshine of the year, with an average of 10.2h of sunshine.
The months with the highest UV index in Pearl are June through August, with an average maximum UV index of 6.
July, known for its average high temperature of 84.2°F (29°C) and an average low temperature of 67.1°F (19.5°C), is the warmest month.
The most humid month is July, with an average relative humidity of 81%.
October is the least humid month, with an average relative humidity of 71%.
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Pearl, IL
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Pearl, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Pearl, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
7.9mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Pearl, IL
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Pearl, IL
- Average rainfall in January:
0.83" - Average rainfall in February:
0.87" - Average rainfall in March:
1.26" - Average rainfall in April:
1.89" - Average rainfall in May:
2.05" - Average rainfall in June:
2.44"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.85" - Average rainfall in September:
1.34" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days
Pearl, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
11 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall
Pearl, IL
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Pearl, IL
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Pearl, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Pearl, IL
- Average sunshine days in January:
19.9 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index
Pearl, IL
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).
Average cloud cover
Pearl, IL
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Pearl, IL
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).
