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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Perks, Illinois, is a wintry winter month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 40.1°F (4.5°C). January tends to be the coldest month, with temperatures averaging a daily high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C). Weather in January »
Weather in February
February, the last month of the winter in Perks, is a chilly month, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 30.7°F (-0.7°C). The advent of February denotes an average high-temperature of a chilly 45.1°F (7.3°C), subtly different from January's 40.1°F (4.5°C). Weather in February »
Weather in March
March, the first month of the spring in Perks, is a mild month, with an average temperature fluctuating between 55.8°F (13.2°C) and 39.7°F (4.3°C). March marks a rise in the average high-temperature, moving from February's chilly 45.1°F (7.3°C) to a moderate 55.8°F (13.2°C). Weather in March »
Weather in April
April is a refreshing spring month in Perks, Illinois, with an average temperature fluctuating between 48.9°F (9.4°C) and 66.6°F (19.2°C). April's arrival sees a rise in the average high-temperature, jumping from March's mild 55.8°F (13.2°C) to a comfortable 66.6°F (19.2°C). Weather in April »
Weather in May
May, the last month of the spring in Perks, is a warm month, with an average temperature varying between 57.9°F (14.4°C) and 75.7°F (24.3°C). In Perks, the average high-temperature in May rises, from a comfortable 66.6°F (19.2°C) in April, to a warm 75.7°F (24.3°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Perks, Illinois, with an average temperature varying between 85.6°F (29.8°C) and 66.2°F (19°C). With the onset of June, Perks's weather sees a temperature rise, transitioning from 75.7°F (24.3°C) in May to a still moderately hot 85.6°F (29.8°C). Weather in June »
Weather in July
July is a hot summer month in Perks, Illinois, with an average temperature varying between 68.5°F (20.3°C) and 88°F (31.1°C). In Perks, the peak temperatures are generally noted in July, averaging a high of 88°F (31.1°C) and a low of 68.5°F (20.3°C). The heat index value during July is calculated to be a scorching 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Perks, Illinois, with an average temperature varying between 66.7°F (19.3°C) and 86.5°F (30.3°C). In Perks, August's average high-temperature stands at a still hot 86.5°F (30.3°C), closely related to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Perks, Illinois, with an average temperature varying between 60.6°F (15.9°C) and 81.1°F (27.3°C). Perks's weather subtly changes with the onset of September, barely falling from a hot 86.5°F (30.3°C) in August to a moderately hot 81.1°F (27.3°C). Weather in September »
Weather in October
October, like September, in Perks, Illinois, is another refreshing autumn month, with an average temperature varying between 49.6°F (9.8°C) and 67.8°F (19.9°C). A decrease in the average high-temperature is observed during October, shifting from a warm 81.1°F (27.3°C) in September to an enjoyable 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Perks, is also a fresh month, with an average temperature varying between 54.5°F (12.5°C) and 38.8°F (3.8°C). The transition into November involves a decrease in the average high-temperature, falling from an enjoyable 67.8°F (19.9°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Perks, Illinois, with temperature in the range of an average high of 44.8°F (7.1°C) and an average low of 32.7°F (0.4°C). The onset of December results in a decrease in the average high-temperature, receding from a fresh 54.5°F (12.5°C) in November to a frosty 44.8°F (7.1°C). Weather in December »
Updated: Jul 12, 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
What part of the year is the coldest?
January, with average temperatures reaching a high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C), is the coldest month.
How much does it rain?
Throughout the year, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall.
How much does it snow?
In Perks, during the entire year, snow falls for 11 days and aggregates up to 1.57" (40mm) of snow.
What are the months with the least sunshine?
The months with the least sunshine are January and February, with an average of 4.6h of sunshine.
What is the month with the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 3.2 days and accumulates 0.67" (17mm) of snow.
What are the most humid months?
March and May, with an average relative humidity of 79%, are most humid months.
When is Daylight Saving Time (DST)?
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.
When it does not snow in Perks?
In Perks, snow does not fall in April through October.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the rainiest month?
June is the month with the most rainfall. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.
When are the longest days in Perks?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What are the months with the most sunshine?
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.
What is the hottest time of year?
July is the month when Perks sees the average highest temperatures, with a high of 88°F (31.1°C) and a low of 68.5°F (20.3°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 8.3 days and accumulates 0.47" (12mm) of precipitation.
What is the least humid month?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Perks, IL
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure
Perks, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Perks, IL
- Average wind speed in January:
9mph - Average wind speed in February:
9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.2mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Perks, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Perks, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
1.14" - Average rainfall in March:
1.22" - Average rainfall in April:
1.22" - Average rainfall in May:
1.34" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.42" - Average rainfall in August:
1.3" - Average rainfall in September:
0.47" - Average rainfall in October:
0.98" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days
Perks, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall
Perks, IL
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Perks, IL
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in December:
1.9 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Perks, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Perks, IL
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
21.2 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index
Perks, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Perks, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility
Perks, 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).
Perks, Illinois, USA
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