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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, the same as December, in Sunnyside, Illinois, is another subzero cold winter month, with an average temperature ranging between max 26.6°F (-3°C) and min 14.9°F (-9.5°C). January, marked by an average high-temperature of 26.6°F (-3°C) and a low-temperature of 14.9°F (-9.5°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Sunnyside, Illinois, with an average temperature varying between 18°F (-7.8°C) and 30.2°F (-1°C). Transitioning into February, Sunnyside records an average high-temperature of a still freezing cold 30.2°F (-1°C), almost identical to January's 26.6°F (-3°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Sunnyside, Illinois, with an average temperature fluctuating between 42.8°F (6°C) and 28.9°F (-1.7°C). As March begins, there is an increase in the average high-temperature, moving from a freezing cold 30.2°F (-1°C) in February to a frosty 42.8°F (6°C). Weather in March »
Weather in April
April in Sunnyside, Illinois, is a cool spring month, with an average temperature varying between 38.3°F (3.5°C) and 54.3°F (12.4°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a frosty 42.8°F (6°C) in March to a fresh 54.3°F (12.4°C). Weather in April »
Weather in May
May, the last month of the spring in Sunnyside, is an enjoyable month, with an average temperature ranging between min 49.3°F (9.6°C) and max 66.4°F (19.1°C). May's arrival coincides with a rise in the average high-temperature, moving from April's fresh 54.3°F (12.4°C) to an enjoyable 66.4°F (19.1°C). Weather in May »
Weather in June
June, the first month of the summer in Sunnyside, is a moderately hot month, with an average temperature varying between 75.6°F (24.2°C) and 58.5°F (14.7°C). June's onset brings a rise in the average high-temperature, moving from an enjoyable 66.4°F (19.1°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »
Weather in July
July, like June, in Sunnyside, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 63.1°F (17.3°C). Temperature readings reach their annual highs in July, averaging 79.7°F (26.5°C) and a minimum average of 63.1°F (17.3°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Sunnyside, Illinois, with an average temperature ranging between min 61.3°F (16.3°C) and max 78.1°F (25.6°C). As July turns into August, the average high-temperatures rest at a still moderately hot 78.1°F (25.6°C), showing a minor variation from the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Sunnyside, Illinois, with an average temperature ranging between max 72.3°F (22.4°C) and min 55°F (12.8°C). With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 78.1°F (25.6°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Sunnyside, Illinois, with an average temperature fluctuating between 58.6°F (14.8°C) and 43.9°F (6.6°C). October brings a decrease in the average high-temperature, falling from September's agreeable 72.3°F (22.4°C) to a mild 58.6°F (14.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Sunnyside, Illinois, with an average temperature ranging between max 44.6°F (7°C) and min 32.2°F (0.1°C). The transition into November involves a decrease in the average high-temperature, falling from a mild 58.6°F (14.8°C) in October to a chilly 44.6°F (7°C). Weather in November »
Weather in December
December, the first month of the winter in Sunnyside, is still a cold month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 32.7°F (0.4°C). As December begins, there is a decrease in the average high-temperature, falling from a frosty 44.6°F (7°C) in November to a cold 32.7°F (0.4°C). Weather in December »
Updated: Aug 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
What month is the coldest?
January, on average, is the coldest month, registering a high temperature of 26.6°F (-3°C) and a low of 14.9°F (-9.5°C).
What is the most humid month?
The months with the highest humidity are January and February, with an average relative humidity of 85%.
How much does it rain?
In Sunnyside, during the entire year, the rain falls for 152.4 days and collects up to 28.07" (713mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 13.3 days and typically aggregates up to 5.16" (131mm) of snow.
How much does it snow?
In Sunnyside, Illinois, during the entire year, snow falls for 49 days and aggregates up to 16.5" (419mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
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.
What is the rainiest month?
June is the month with the most rainfall. Rain falls for 17.2 days and accumulates 3.58" (91mm) of precipitation.
When it does not snow?
In Sunnyside, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What part of the year is the hottest?
In Sunnyside, July is identified by the average highest temperatures, reaching a peak of 79.7°F (26.5°C) and a low of 63.1°F (17.3°C).
What is the month with the most sunshine?
The months with the most sunshine are July and August, with an average of 10h of sunshine.
When is the highest UV index?
With an average maximum UV index of 6, August is the month with the highest UV index.
What is the least humid month?
The least humid month is October, with an average relative humidity of 76%.
What is the driest month?
The month with the least rainfall is December, when the rain falls for 7.9 days and typically collects 1.34" (34mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Sunnyside, IL
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure
Sunnyside, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"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
Sunnyside, IL
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Sunnyside, IL
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Sunnyside, IL
- Average rainfall in January:
1.54" - Average rainfall in February:
1.46" - Average rainfall in March:
1.77" - Average rainfall in April:
3.46" - Average rainfall in May:
3.39" - Average rainfall in June:
3.58"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.56" - Average rainfall in September:
2.09" - Average rainfall in October:
2.52" - Average rainfall in November:
1.5" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days
Sunnyside, IL
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
16.1 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Sunnyside, IL
- Average snowfall in January:
5.16" - Average snowfall in February:
3.5" - Average snowfall in March:
1.89" - Average snowfall in April:
1.54" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sunnyside, IL
- Average snowfall days in January:
13.3 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
2.2 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
10.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sunnyside, IL
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Sunnyside, IL
- Average sunshine days in January:
13.7 days - Average sunshine days in February:
12.1 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
10.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
16 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
Sunnyside, IL
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Sunnyside, IL
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Sunnyside, IL
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Sunnyside, Illinois, USA
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