Climate and monthly weather forecastSugar Grove, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Sugar Grove, Illinois, with an average temperature varying between 15.8°F (-9°C) and 27.9°F (-2.3°C). January stands out as Sugar Grove's coldest month, with temperatures ranging between an average high of 27.9°F (-2.3°C) and a low of 15.8°F (-9°C). Weather in January »Weather in February
February, the last month of the winter in Sugar Grove, is an icy month, with temperature in the range of an average low of 19°F (-7.2°C) and an average high of 32°F (0°C). Entering February, Sugar Grove's average high-temperature reads a cold 32°F (0°C), indicating a close resemblance to the previous month's climate. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Sugar Grove, Illinois, with an average temperature varying between 45.5°F (7.5°C) and 30.7°F (-0.7°C). As Sugar Grove welcomes March, the average high-temperature sees a rise, transitioning from an icy 32°F (0°C) in February to a chilly 45.5°F (7.5°C). Weather in March »Weather in April
April in Sugar Grove, Illinois, is a mild spring month, with an average temperature varying between 40.1°F (4.5°C) and 57°F (13.9°C). April's onset brings a temperature rise, moving from a frosty 45.5°F (7.5°C) in March to a moderate 57°F (13.9°C). Weather in April »Weather in May
May, the last month of the spring in Sugar Grove, is a pleasant month, with an average temperature varying between 69.1°F (20.6°C) and 51.8°F (11°C). A shift in the average high-temperature is noticeable in May, changing from a mild 57°F (13.9°C) in April to a pleasant 69.1°F (20.6°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Sugar Grove, Illinois, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 78.1°F (25.6°C). June's onset is marked by a temperature increase, moving from a pleasant 69.1°F (20.6°C) in May to a warm 78.1°F (25.6°C). Weather in June »Weather in July
July, like June, in Sugar Grove, Illinois, is another warm summer month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 80.6°F (27°C). In Sugar Grove, July is the warmest month, with temperatures averaging a high of 80.6°F (27°C) and a low of 63.3°F (17.4°C). For most parts of July, the heat index is calculated to be a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Sugar Grove, is another warm month, with an average temperature ranging between min 61.7°F (16.5°C) and max 79.2°F (26.2°C). Sugar Grove ushers in August with an average high-temperature of a still moderately hot 79.2°F (26.2°C), showing a close resemblance to the previous month. Weather in August »Weather in September
September, the first month of the autumn in Sugar Grove, is also a moderately hot month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 73.8°F (23.2°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 79.2°F (26.2°C) in August to a still moderately hot 73.8°F (23.2°C). Weather in September »Weather in October
October, the same as September, in Sugar Grove, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 44.4°F (6.9°C) and an average high of 60.3°F (15.7°C). With the onset of October, Sugar Grove's average high-temperature adjusts, receding from September's warm 73.8°F (23.2°C) to a mild 60.3°F (15.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Sugar Grove, Illinois, with an average temperature varying between 32.7°F (0.4°C) and 45.5°F (7.5°C). The start of November signals a clear decrease in the average high-temperature, falling from a refreshing 60.3°F (15.7°C) in October to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Sugar Grove, Illinois, with an average temperature varying between 23.7°F (-4.6°C) and 34.2°F (1.2°C). December weather is marked by a drop in the average high-temperature, falling from a chilly 45.5°F (7.5°C) in November to a wintry 34.2°F (1.2°C). Weather in December »Updated: Aug 19, 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 temperatures occur during January, when averages reach a peak of 27.9°F (-2.3°C) and a low of 15.8°F (-9°C).
The months with the highest humidity are January, July and August, with an average relative humidity of 84%.
Throughout the year, there are 156.4 rainfall days, and 30.98" (787mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
The month with the most snowfall is January, when snow falls for 13.1 days and typically aggregates up to 4.65" (118mm) of snow.
In Sugar Grove, during the entire year, snow falls for 44.6 days and aggregates up to 15.2" (386mm) of snow.
With an average of 3.7h of sunshine, January has the least sunshine of the year.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
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.
The month with the most rainfall is May, when the rain falls for 18 days and typically aggregates up to 4.33" (110mm) of precipitation.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 12min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
With its average high temperature of 80.6°F (27°C) and a low of 63.3°F (17.4°C), July is regarded as the warmest month.
With an average of 9.6h of sunshine, August has the most sunshine of the year.
The least humid month is October, with an average relative humidity of 74%.
December is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.57" (40mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Sugar Grove, IL
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure
Sugar Grove, 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:
30.01"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
Sugar Grove, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.5mph - 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:
6.3mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.1mph
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 August (6mph).
Average humidity
Sugar Grove, IL
The months with the highest relative humidity are January, July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Sugar Grove, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.65" - Average rainfall in March:
1.97" - Average rainfall in April:
3.54" - Average rainfall in May:
4.33" - Average rainfall in June:
3.98"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.4" - Average rainfall in September:
2.28" - Average rainfall in October:
2.72" - Average rainfall in November:
1.65" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days
Sugar Grove, IL
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
6 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
18 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
18.2 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
13 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (6 days).
Average snowfall
Sugar Grove, IL
- Average snowfall in January:
4.65" - Average snowfall in February:
3.43" - Average snowfall in March:
1.54" - Average snowfall in April:
1.42" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sugar Grove, IL
- Average snowfall days in January:
13.1 days - Average snowfall days in February:
10.4 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0.2 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:
0.4 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
9.1 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sugar Grove, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Sugar Grove, IL
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15.3 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.3 days).
Average UV index
Sugar Grove, 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 and December (UV index 1).
Average cloud cover
Sugar Grove, IL
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility
Sugar Grove, 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).
