Climate and monthly weather forecastLeland Grove, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Leland Grove, Illinois, is an icy winter month, with an average temperature varying between 33.4°F (0.8°C) and 20.8°F (-6.2°C). January, marked by an average high-temperature of 33.4°F (0.8°C) and a low-temperature of 20.8°F (-6.2°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Leland Grove, Illinois, with an average temperature ranging between min 24.8°F (-4°C) and max 38.3°F (3.5°C). Leland Grove measures an average high-temperature of a still icy 38.3°F (3.5°C) in February, nearly consistent with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Leland Grove, Illinois, with an average temperature ranging between max 50.9°F (10.5°C) and min 35.4°F (1.9°C). March signals a shift in the average high-temperature, moving from February's wintry 38.3°F (3.5°C) to a fresh 50.9°F (10.5°C). Weather in March »Weather in April
April in Leland Grove, Illinois, is a refreshing spring month, with an average temperature ranging between min 46.2°F (7.9°C) and max 63.1°F (17.3°C). With the transition into April, Leland Grove experiences an increase in average high-temperatures, moving up from a cool 50.9°F (10.5°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Leland Grove, Illinois, with an average temperature ranging between min 56.3°F (13.5°C) and max 72.9°F (22.7°C). The average high-temperature increases in May, moving from a comfortable 63.1°F (17.3°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Leland Grove, Illinois, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 81.1°F (27.3°C). With the transition into June, Leland Grove experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 72.9°F (22.7°C) in May to a warm 81.1°F (27.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Leland Grove, Illinois, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 66°F (18.9°C). July stands out as Leland Grove's warmest month, with an average high-temperature of 82.8°F (28.2°C) and a low-temperature of 66°F (18.9°C). During July, the heat index is evaluated at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Leland Grove, is also a moderately hot month, with an average temperature fluctuating between 81.9°F (27.7°C) and 64°F (17.8°C). As July transitions into August, the average high-temperature rests at a still moderately hot 81.9°F (27.7°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Leland Grove, Illinois, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 58.5°F (14.7°C). During September, Leland Grove records an average high-temperature of a still warm 77.4°F (25.2°C), marking a slight divergence from August's 81.9°F (27.7°C). Weather in September »Weather in October
October, like September, in Leland Grove, Illinois, is another enjoyable autumn month, with an average temperature varying between 48.2°F (9°C) and 64°F (17.8°C). The move into October indicates a reduction in the average high-temperature, down from September's moderately hot 77.4°F (25.2°C) to an enjoyable 64°F (17.8°C). Weather in October »Weather in November
November, the last month of the autumn in Leland Grove, is also a fresh month, with an average temperature fluctuating between 36.3°F (2.4°C) and 50°F (10°C). November's onset corresponds with a shift in the average high-temperature, moving from a refreshing 64°F (17.8°C) in October to a fresh 50°F (10°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Leland Grove, Illinois, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 38.7°F (3.7°C). Leland Grove's average high-temperature decreases in December, falling from a cool 50°F (10°C) in November to an icy 38.7°F (3.7°C). Weather in December »Updated: Aug 4, 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 stands out as Leland Grove's coldest month, with temperatures ranging between an average high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).
In Leland Grove, during the entire year, the rain falls for 140.2 days and collects up to 23.27" (591mm) of precipitation.
Months with snowfall are January through April, November and December.
The month with the most snowfall is January, when snow falls for 9.5 days and typically aggregates up to 2.24" (57mm) of snow.
Throughout the year, there are 28.1 snowfall days, and 7.48" (190mm) of snow is accumulated.
With an average of 4.2h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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.
In Leland Grove, snow does not fall in May through October.
The month with the most rainfall is June, when the rain falls for 15.5 days and typically aggregates up to 2.72" (69mm) of precipitation.
With an average of 14h and 54min of daylight, June has the longest days of the year.
With an average of 10.4h of sunshine, June has the most sunshine of the year.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Leland Grove's warmest temperatures are experienced in July, with average high temperatures of 82.8°F (28.2°C) and lows of 66°F (18.9°C).
With an average relative humidity of 84%, July is the most humid month in Leland Grove.
The least humid month is October, with an average relative humidity of 70%.
December is the month with the least rainfall in Leland Grove. Rain falls for 7.1 days and accumulates 1.18" (30mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Leland Grove, IL
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Leland Grove, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"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:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Leland Grove, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Leland Grove, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Leland Grove, IL
- Average rainfall in January:
1.26" - Average rainfall in February:
1.22" - Average rainfall in March:
1.65" - Average rainfall in April:
2.64" - Average rainfall in May:
2.68" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.09" - Average rainfall in August:
2.28" - Average rainfall in September:
2.28" - Average rainfall in October:
2.01" - Average rainfall in November:
1.26" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Leland Grove, IL
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
7.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Leland Grove, IL
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Leland Grove, IL
- Average snowfall days in January:
9.5 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
3.2 days - Average snowfall days in April:
0.6 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:
0.2 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Leland Grove, IL
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Leland Grove, IL
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Leland 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, February, November and December (UV index 2).
Average cloud cover
Leland Grove, IL
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Leland Grove, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
