Climate and monthly weather forecastShady Grove, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Shady Grove, Illinois, is an icy winter month, with an average temperature fluctuating between 41.5°F (5.3°C) and 28.6°F (-1.9°C). In Shady Grove, January is the coldest month, with temperatures averaging a high of 41.5°F (5.3°C) and a low of 28.6°F (-1.9°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Shady Grove, Illinois, with an average temperature fluctuating between 32.4°F (0.2°C) and 46.6°F (8.1°C). Shady Grove's February reports an average high-temperature of a chilly 46.6°F (8.1°C), exhibiting a minor difference from January. Weather in February »Weather in March
March, the first month of the spring in Shady Grove, is a refreshing month, with an average temperature varying between 40.5°F (4.7°C) and 56.8°F (13.8°C). With the onset of March, the average high-temperature slightly shifts from February's chilly 46.6°F (8.1°C) to a moderate 56.8°F (13.8°C). Weather in March »Weather in April
April is a refreshing spring month in Shady Grove, Illinois, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 67.8°F (19.9°C). With the transition into April, Shady Grove experiences an increase in average high-temperatures, moving up from a mild 56.8°F (13.8°C) in March to a still refreshing 67.8°F (19.9°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Shady Grove, Illinois, with temperature in the range of an average low of 59°F (15°C) and an average high of 76.6°F (24.8°C). May's arrival signals a subtle increase in average high-temperatures, moving from April's enjoyable 67.8°F (19.9°C) to a moderately hot 76.6°F (24.8°C). Weather in May »Weather in June
June, the first month of the summer in Shady Grove, is still a warm month, with temperature in the range of an average low of 66.4°F (19.1°C) and an average high of 85.8°F (29.9°C). The arrival of June brings a temperature shift, with the average high-temperature escalating from 76.6°F (24.8°C) in May to a still warm 85.8°F (29.9°C). Weather in June »Weather in July
July is a tropical summer month in Shady Grove, Illinois, with an average temperature ranging between max 88.7°F (31.5°C) and min 69.4°F (20.8°C). Shady Grove reaches its highest average temperatures in July, measuring 88.7°F (31.5°C) at the peak and 69.4°F (20.8°C) at the lowest. July's average heat index is computed to be a blisteringly hot 105.8°F (41°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Shady Grove, Illinois, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 87.3°F (30.7°C). August brings an average high-temperature of a still hot 87.3°F (30.7°C), nearly identical to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Shady Grove, Illinois, with an average temperature fluctuating between 81.7°F (27.6°C) and 61.9°F (16.6°C). September witnesses a gentle descent in average high-temperature, descending from August's hot 87.3°F (30.7°C) to a moderately hot 81.7°F (27.6°C). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Shady Grove, Illinois, with an average temperature fluctuating between 51.1°F (10.6°C) and 69.3°F (20.7°C). October's onset corresponds with a shift in the average high-temperature, moving from a warm 81.7°F (27.6°C) in September to an agreeable 69.3°F (20.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another refreshing month in Shady Grove, Illinois, with an average temperature varying between 40.1°F (4.5°C) and 55.6°F (13.1°C). The onset of November is marked by a decrease in temperature, transitioning from a pleasant 69.3°F (20.7°C) in October to a refreshing 55.6°F (13.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Shady Grove, Illinois, with an average temperature fluctuating between 46.2°F (7.9°C) and 34.2°F (1.2°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's refreshing 55.6°F (13.1°C) to a frosty 46.2°F (7.9°C). Weather in December »Updated: Jul 8, 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
January, on average, is the coldest month, registering a high temperature of 41.5°F (5.3°C) and a low of 28.6°F (-1.9°C).
In Shady Grove, during the entire year, the rain falls for 126.4 days and collects up to 16.89" (429mm) of precipitation.
January through March, November and December are months with snowfall.
Throughout the year, there are 8.9 snowfall days, and 1.65" (42mm) of snow is accumulated.
January 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 3.3 days and typically aggregates up to 0.71" (18mm) of snow.
February has the least sunshine of the year, with an average of 4.6h of sunshine.
The months with the highest humidity are March and May, with an average relative humidity of 79%.
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.
April through October are months without snowfall.
May is the month with the most rainfall. Rain falls for 14.7 days and accumulates 1.93" (49mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
With an average of 14h and 42min of daylight, June has the longest days of the year.
The months with the most sunshine are June and July, with an average of 10.5h of sunshine.
Shady Grove's warmest temperatures are experienced in July, with average high temperatures of 88.7°F (31.5°C) and lows of 69.4°F (20.8°C).
The month with the least rainfall is September, when the rain falls for 8.6 days and typically collects 0.63" (16mm) of precipitation.
The least humid month is October, with an average relative humidity of 70%.
The month with the shortest days is December, with an average of 9h and 42min of daylight.
Average temperature
Shady Grove, IL
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure
Shady Grove, IL
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"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:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Shady Grove, IL
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
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:
8.3mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Shady Grove, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Shady Grove, IL
- Average rainfall in January:
0.87" - Average rainfall in February:
1.81" - Average rainfall in March:
1.65" - Average rainfall in April:
1.69" - Average rainfall in May:
1.93" - Average rainfall in June:
1.42"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.65" - Average rainfall in September:
0.63" - Average rainfall in October:
1.14" - Average rainfall in November:
1.22" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days
Shady Grove, IL
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.6 days - Average rainfall days in October:
7.6 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is October (7.6 days).
Average snowfall
Shady Grove, IL
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Shady Grove, IL
- Average snowfall days in January:
2.5 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1 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 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.4 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shady Grove, IL
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
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 42min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Shady Grove, IL
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
15.5 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
16.8 days - Average sunshine days in September:
19.9 days - Average sunshine days in October:
22.3 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
20 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (14.2 days).
Average UV index
Shady Grove, 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 and December (UV index 2).
Average cloud cover
Shady Grove, IL
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility
Shady Grove, 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).
