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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 Leland, Illinois, with an average temperature ranging between max 28.8°F (-1.8°C) and min 16.7°F (-8.5°C). The month of January sees the lowest average temperatures, reaching 28.8°F (-1.8°C) at the peak and 16.7°F (-8.5°C) at the low. Weather in January »
Weather in February
February, the last month of the winter in Leland, is a wintry month, with an average temperature varying between 19.8°F (-6.8°C) and 32.7°F (0.4°C). The arrival of February is marked by an average high-temperature of an icy 32.7°F (0.4°C), bearing a close resemblance to January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Leland, Illinois, with an average temperature fluctuating between 31.6°F (-0.2°C) and 46°F (7.8°C). March brings a rise in the average high-temperature, transitioning from February's wintry 32.7°F (0.4°C) to a chilly 46°F (7.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Leland, Illinois, with an average temperature ranging between max 58.1°F (14.5°C) and min 41.5°F (5.3°C). Entering April, Leland sees a temperature rise, with the average high-temperature advancing from March's chilly 46°F (7.8°C) to a refreshing 58.1°F (14.5°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Leland, Illinois, with an average temperature varying between 70.3°F (21.3°C) and 52.9°F (11.6°C). The onset of May marks an increase in the average high-temperature, moving from a moderate 58.1°F (14.5°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
June, the first month of the summer in Leland, is a moderately hot month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 78.6°F (25.9°C). In June, the meteorological conditions subtly change with the average high-temperature edging from an agreeable 70.3°F (21.3°C) in May to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Leland, Illinois, with an average temperature fluctuating between 80.8°F (27.1°C) and 64°F (17.8°C). July is the warmest month, with an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 64°F (17.8°C). In July, the average 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 Leland, is another warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 61.9°F (16.6°C). Leland's weather in August, with an average high-temperature of a still warm 79.3°F (26.3°C), subtly shifts from July's 80.8°F (27.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Leland, Illinois, with an average temperature fluctuating between 55.8°F (13.2°C) and 74.3°F (23.5°C). The advent of September presents an average high-temperature of a still warm 74.3°F (23.5°C), maintaining a close correlation with the preceding month. Weather in September »
Weather in October
October, like September, in Leland, Illinois, is another comfortable autumn month, with an average temperature varying between 61.3°F (16.3°C) and 45.3°F (7.4°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 74.3°F (23.5°C) in September to a refreshing 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Leland, is another chilly month, with an average temperature fluctuating between 33.4°F (0.8°C) and 46.4°F (8°C). November's arrival brings a noticeable temperature shift, dropping from an enjoyable 61.3°F (16.3°C) in October to a frosty 46.4°F (8°C). Weather in November »
Weather in December
December, the first month of the winter in Leland, is still a cold month, with an average temperature fluctuating between 34.5°F (1.4°C) and 24.3°F (-4.3°C). A moderate decline in the average high-temperature is seen during December, decreasing from a chilly 46.4°F (8°C) in November to a cold 34.5°F (1.4°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Leland?
January proves to be the coldest month, recording an average maximum temperature of 28.8°F (-1.8°C) and a minimum temperature of 16.7°F (-8.5°C).
How much does it rain in Leland?
Throughout the year, in Leland, Illinois, there are 109.6 rainfall days, and 10.31" (262mm) of precipitation is accumulated.
When does it snow in Leland?
Months with snowfall in Leland, Illinois, are January through April, October through December.
What is the snowiest month in Leland?
The month with the most snowfall in Leland, Illinois, is January, when snow falls for 8.8 days and typically aggregates up to 1.38" (35mm) of snow.
How much does it snow in Leland?
Throughout the year, there are 28.6 snowfall days, and 4.33" (110mm) of snow is accumulated.
What is the month with the least sunshine in Leland?
January has the least sunshine of the year, with an average of 3.8h of sunshine.
What is the month with the lowest UV index in Leland?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Leland, Illinois.
What is the driest month in Leland?
The month with the least rainfall in Leland is February, when the rain falls for 4.3 days and typically collects 0.47" (12mm) of precipitation.
When is Daylight Saving Time (DST) in Leland?
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 in Leland?
May is the month with the most rainfall. Rain falls for 14.6 days and accumulates 1.54" (39mm) of precipitation.
When it does not snow in Leland?
In Leland, Illinois, snow does not fall in May through September.
When are the longest days in Leland?
With an average of 15h and 6min of daylight, June has the longest days of the year in Leland, Illinois.
What month has the most sunshine in Leland?
June has the most sunshine of the year in Leland, Illinois, with an average of 9.7h of sunshine.
When is the highest UV index in Leland?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Leland.
What are the warmest months in Leland?
With its average high temperature of 80.8°F (27.1°C) and a low of 64°F (17.8°C), July is regarded as the warmest month in Leland.
What is the most humid month in Leland?
The most humid month in Leland, Illinois, is July, with an average relative humidity of 85%.
What is the least humid month in Leland?
With an average relative humidity of 73%, October is the least humid month in Leland.
What is the month with the shortest days in Leland?
The month with the shortest days in Leland is December, with an average of 9h and 12min of daylight.
Average temperature
Leland, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Leland, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"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:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Leland, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.1mph - 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:
9.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity
Leland, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Leland, IL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.47" - Average rainfall in March:
0.63" - Average rainfall in April:
1.26" - Average rainfall in May:
1.54" - Average rainfall in June:
1.22"
- Average rainfall in July:
1.18" - Average rainfall in August:
0.83" - Average rainfall in September:
0.75" - Average rainfall in October:
0.91" - Average rainfall in November:
0.51" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days
Leland, IL
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
9.1 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (3.8 days).
Average snowfall
Leland, IL
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Leland, IL
- Average snowfall days in January:
8.8 days - Average snowfall days in February:
7 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.9 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:
0.3 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Leland, IL
- Average daylight in January:
9h and 4min - 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 3min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - 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:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Leland, IL
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
18.4 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
16.9 days - Average sunshine days in September:
19.9 days - Average sunshine days in October:
20.4 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
21.3 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is May (14.2 days).
Average UV index
Leland, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Leland, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility
Leland, 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).
Leland, Illinois, USA
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