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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, is another subzero cold winter month in Sycamore, Illinois, with an average temperature varying between 27°F (-2.8°C) and 15.1°F (-9.4°C). Sycamore's coldest month, January, registers temperatures that range from a high of 27°F (-2.8°C) to a low of 15.1°F (-9.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Sycamore, Illinois, with an average temperature fluctuating between 31.1°F (-0.5°C) and 18.1°F (-7.7°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still freezing cold 31.1°F (-0.5°C) from January's 27°F (-2.8°C). Weather in February »
Weather in March
March, the first month of the spring in Sycamore, is a chilly month, with an average temperature fluctuating between 44.6°F (7°C) and 30.2°F (-1°C). Sycamore in March sees a temperature change, with average high-temperatures moving from a subzero cold 31.1°F (-0.5°C) in February to a frosty 44.6°F (7°C). Weather in March »
Weather in April
April in Sycamore, Illinois, is a moderate spring month, with an average temperature fluctuating between 39.9°F (4.4°C) and 56.7°F (13.7°C). With the onset of April, Sycamore sees a temperature rise, with the average high-temperature moving from March's chilly 44.6°F (7°C) to a moderate 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Sycamore, Illinois, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 51.4°F (10.8°C). May brings an increase in the average high-temperature, progressing from a moderate 56.7°F (13.7°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Sycamore, is a moderately hot month, with an average temperature varying between 60.1°F (15.6°C) and 77.7°F (25.4°C). June's arrival brings a change in high-temperatures, moving from an agreeable 68.7°F (20.4°C) in May to a warm 77.7°F (25.4°C). Weather in June »
Weather in July
July, like June, in Sycamore, Illinois, is another warm summer month, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C). The warmest temperatures occur during July, when averages reach a peak of 80.2°F (26.8°C) and a low 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 Sycamore, Illinois, with an average temperature fluctuating between 78.4°F (25.8°C) and 61.2°F (16.2°C). The transition from July to August sees average high-temperatures adjusting to a still warm 78.4°F (25.8°C), from a not significantly different 80.2°F (26.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Sycamore, Illinois, with an average temperature varying between 73°F (22.8°C) and 54.5°F (12.5°C). September signals a slight drop in average high-temperature, sliding from August's warm 78.4°F (25.8°C) to a pleasant 73°F (22.8°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Sycamore, Illinois, with an average temperature ranging between min 44.1°F (6.7°C) and max 59.9°F (15.5°C). October comes with a drop in the average high-temperature, falling from September's agreeable 73°F (22.8°C) to a mild 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Sycamore, Illinois, with temperature in the range of an average low of 32°F (0°C) and an average high of 45.3°F (7.4°C). November's onset brings a noticeable temperature drop, falling from a moderate 59.9°F (15.5°C) in October to a frosty 45.3°F (7.4°C). Weather in November »
Weather in December
December, the first month of the winter in Sycamore, is also an icy month, with temperature in the range of an average high of 33.1°F (0.6°C) and an average low of 23°F (-5°C). A shift in the average high-temperature occurs in December, reducing from a frosty 45.3°F (7.4°C) in November to a wintry 33.1°F (0.6°C). Weather in December »
Updated: Feb 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 are the coldest months in Sycamore?
Sycamore's January weather reaches an average high of 27°F (-2.8°C) and an average low of 15.1°F (-9.4°C), making it the coldest month.
What are the most humid months in Sycamore?
The months with the highest humidity are January and July, with an average relative humidity of 85%.
How many days does it rain in Sycamore?
Throughout the year, in Sycamore, Illinois, there are 152.6 rainfall days, and 32.09" (815mm) of precipitation is accumulated.
When does it snow in Sycamore?
January through May, October through December are months with snowfall in Sycamore, Illinois.
What is the snowiest month in Sycamore?
January is the month with the most snowfall. Snow falls for 11.8 days and accumulates 5.55" (141mm) of snow.
How much does it snow in Sycamore?
Throughout the year, in Sycamore, Illinois, there are 44.3 snowfall days, and 17.87" (454mm) of snow is accumulated.
What is the month with the least sunshine in Sycamore?
The month with the least sunshine is January, with an average of 3.6h of sunshine.
When is the lowest UV index in Sycamore?
The months with the lowest UV index in Sycamore, Illinois, are January and December, with an average maximum UV index of 1.
What is the driest month in Sycamore?
The month with the least rainfall is February, when the rain falls for 4.7 days and typically collects 1.65" (42mm) of precipitation.
When is Daylight Saving Time (DST) in Sycamore?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sycamore, Illinois, 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 least humid month in Sycamore?
The months with the lowest humidity in Sycamore, Illinois, are April and October, with an average relative humidity of 75%.
What is the wettest month in Sycamore?
May is the month with the most rainfall in Sycamore. Rain falls for 18.3 days and accumulates 4.37" (111mm) of precipitation.
When it does not snow in Sycamore?
In Sycamore, snow does not fall in June through September.
When are the longest days in Sycamore?
With an average of 15h and 12min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Sycamore?
June and August, with an average maximum UV index of 6, are months with the highest UV index in Sycamore, Illinois.
What is the hottest time of year in Sycamore?
July stands out as Sycamore's warmest month, with an average high-temperature of 80.2°F (26.8°C) and a low-temperature of 63.1°F (17.3°C).
What month has the most sunshine in Sycamore?
July has the most sunshine of the year in Sycamore, Illinois, with an average of 9.6h of sunshine.
What is the month with the shortest days in Sycamore?
The month with the shortest days in Sycamore is December, with an average of 9h and 12min of daylight.
Average temperature
Sycamore, IL
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27°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 (15.1°F).
Average pressure
Sycamore, 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:
29.98"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:
30.1"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
Sycamore, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Sycamore, IL
The months with the highest relative humidity are January and July (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall
Sycamore, IL
- Average rainfall in January:
1.81" - Average rainfall in February:
1.65" - Average rainfall in March:
2.05" - Average rainfall in April:
3.86" - Average rainfall in May:
4.37" - Average rainfall in June:
4.13"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.72" - Average rainfall in September:
2.24" - Average rainfall in October:
2.68" - Average rainfall in November:
1.73" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days
Sycamore, IL
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
12.2 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.7 days).
Average snowfall
Sycamore, IL
- Average snowfall in January:
5.55" - Average snowfall in February:
3.86" - Average snowfall in March:
2.17" - Average snowfall in April:
1.34" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sycamore, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
10.6 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.7 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:
0.8 days - Average snowfall days in November:
3.7 days - Average snowfall days in December:
10 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sycamore, 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 1min - 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 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Sycamore, IL
- Average sunshine days in January:
14.6 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
15.4 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17.2 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index
Sycamore, IL
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Sycamore, IL
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility
Sycamore, IL
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Sycamore, Illinois, USA
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