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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 a freezing cold winter month in Lyons, Illinois, with temperature in the range of an average low of 19.2°F (-7.1°C) and an average high of 29.1°F (-1.6°C). Lyons's January weather, marked by an average high temperature of 29.1°F (-1.6°C) and an average low temperature of 19.2°F (-7.1°C), is the coldest in the year. Weather in January »
Weather in February
February, the last month of the winter in Lyons, is an icy month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 32.4°F (0.2°C). In February, Lyons experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 29.1°F (-1.6°C) in January to a wintry 32.4°F (0.2°C). Weather in February »
Weather in March
March, the first month of the spring in Lyons, is a frosty month, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 43.7°F (6.5°C). March indicates a change in the average high-temperature, moving up from a cold 32.4°F (0.2°C) in February to a frosty 43.7°F (6.5°C). Weather in March »
Weather in April
April is a fresh spring month in Lyons, Illinois, with an average temperature fluctuating between 40.8°F (4.9°C) and 53.8°F (12.1°C). As Lyons, Illinois, transitions into April, a rise in the average high-temperature is observed, moving from a frosty 43.7°F (6.5°C) in March to a fresh 53.8°F (12.1°C). Weather in April »
Weather in May
May, the last month of the spring in Lyons, is a comfortable month, with an average temperature fluctuating between 64.9°F (18.3°C) and 51.4°F (10.8°C). In Lyons, the average high-temperature in May increases from a fresh 53.8°F (12.1°C) in April to an enjoyable 64.9°F (18.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Lyons, Illinois, with an average temperature fluctuating between 61.3°F (16.3°C) and 75°F (23.9°C). The beginning of June signals a rise in the average high-temperature, moving from a comfortable 64.9°F (18.3°C) in May to a warm 75°F (23.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Lyons, Illinois, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 67.1°F (19.5°C). July registers as the month with the highest average temperatures, reaching 80.4°F (26.9°C) at its peak and 67.1°F (19.5°C) at the lowest. Weather in July »
Weather in August
August, the last month of the summer in Lyons, is also a moderately hot month, with an average temperature varying between 79.3°F (26.3°C) and 66.7°F (19.3°C). Lyons experiences a recorded average high-temperature of a still moderately hot 79.3°F (26.3°C) in August, closely aligned with July's 80.4°F (26.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Lyons, is also an agreeable month, with an average temperature varying between 59.5°F (15.3°C) and 72.9°F (22.7°C). As September arrives, Lyons's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 79.3°F (26.3°C) to a pleasant 72.9°F (22.7°C). Weather in September »
Weather in October
October, the same as September, in Lyons, Illinois, is another mild autumn month, with an average temperature ranging between max 59.9°F (15.5°C) and min 47.7°F (8.7°C). A moderate decline in the average high-temperature is seen during October, decreasing from an agreeable 72.9°F (22.7°C) in September to a mild 59.9°F (15.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Lyons, is also a frosty month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 35.4°F (1.9°C). As October transitions to November, the average high-temperature falls from a mild 59.9°F (15.5°C) to a frosty 46°F (7.8°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Lyons, Illinois, with an average temperature fluctuating between 26.4°F (-3.1°C) and 35.1°F (1.7°C). As Lyons enters December, the average high-temperature decreases from the a chilly 46°F (7.8°C) of November to an icy 35.1°F (1.7°C). Weather in December »
Updated: Jul 25, 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?
Lyons reaches its average lowest temperatures in January, measuring 29.1°F (-1.6°C) at the peak and 19.2°F (-7.1°C) at the lowest.
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 82%.
How many days does it rain?
Throughout the year, there are 92 rainfall days, and 7.4" (188mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 26.5 snowfall days, and 4.06" (103mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 3.8h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the driest month?
February, March, November and December are months with the least rain when the rain falls for 3.3 days and typically aggregates up to 0.39" (10mm) of rain.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 7.3 days and typically aggregates up to 1.38" (35mm) of snow.
When is Daylight Saving Time (DST)?
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 wettest month?
May is the month with the most rainfall. Rain falls for 11.3 days and accumulates 1.1" (28mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
June has the longest days of the year in Lyons, with an average of 15h and 12min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Lyons.
What month is the hottest?
In Lyons, July is the month with the highest recorded average temperatures, measuring a high of 80.4°F (26.9°C) and a low of 67.1°F (19.5°C).
What month has the most sunshine?
With an average of 10.6h of sunshine, August has the most sunshine of the year.
What is the least humid month in Lyons?
The least humid month is October, with an average relative humidity of 72%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Lyons, IL
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.1°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Lyons, 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:
30.09"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
Lyons, IL
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.6mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.8mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity
Lyons, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Lyons, IL
- Average rainfall in January:
0.43" - Average rainfall in February:
0.39" - Average rainfall in March:
0.39" - Average rainfall in April:
0.75" - Average rainfall in May:
1.1" - Average rainfall in June:
0.83"
- Average rainfall in July:
0.91" - Average rainfall in August:
0.63" - Average rainfall in September:
0.51" - Average rainfall in October:
0.67" - Average rainfall in November:
0.39" - Average rainfall in December:
0.39"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are February, March, November and December (0.39").
Average rainfall days
Lyons, IL
- Average rainfall days in January:
3.1 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
10.5 days - Average rainfall days in May:
11.3 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
10.8 days - Average rainfall days in August:
9.5 days - Average rainfall days in September:
7.5 days - Average rainfall days in October:
6.7 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall
Lyons, IL
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Lyons, IL
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1.3 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:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Lyons, 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 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 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Lyons, IL
- Average sunshine days in January:
22.1 days - Average sunshine days in February:
20.3 days - Average sunshine days in March:
19.4 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
19.9 days - Average sunshine days in October:
22.4 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
23.7 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is June (14.3 days).
Average UV index
Lyons, 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
Lyons, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Lyons, 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).
Lyons, Illinois, USA
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