Climate and monthly weather forecastLansing, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Lansing, Illinois, with an average temperature varying between 19°F (-7.2°C) and 29.7°F (-1.3°C). Lansing's January weather, marked by an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 19°F (-7.2°C), is the coldest in the year. Weather in January »Weather in February
The last month of the winter, February, is an icy month in Lansing, Illinois, with temperature in the range of an average low of 21.9°F (-5.6°C) and an average high of 33.3°F (0.7°C). February's advent notes a subtle adjustment in average high-temperature to an icy 33.3°F (0.7°C) from January. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Lansing, Illinois, with an average temperature fluctuating between 44.6°F (7°C) and 32.4°F (0.2°C). March's arrival brings a change in high-temperatures, moving from an icy 33.3°F (0.7°C) in February to a frosty 44.6°F (7°C). Weather in March »Weather in April
April in Lansing, Illinois, is a fresh spring month, with an average temperature varying between 55°F (12.8°C) and 41.5°F (5.3°C). April's onset is marked by a temperature increase, moving from a frosty 44.6°F (7°C) in March to a fresh 55°F (12.8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Lansing, Illinois, with an average temperature fluctuating between 52°F (11.1°C) and 66.7°F (19.3°C). With the beginning of May, Lansing's average high-temperature sees an increase, transitioning from a fresh 55°F (12.8°C) in April to a comfortable 66.7°F (19.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Lansing, Illinois, with an average temperature fluctuating between 76.1°F (24.5°C) and 61.3°F (16.3°C). The arrival of June signals an increase in the average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in May to a warm 76.1°F (24.5°C). Weather in June »Weather in July
July, like June, in Lansing, Illinois, is another warm summer month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 65.8°F (18.8°C). In Lansing, the month of July registers the highest temperatures, averaging 80.8°F (27.1°C) at the peak and 65.8°F (18.8°C) at the lowest. For July, the heat index is estimated at a hot 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Lansing, is another warm month, with an average temperature ranging between min 65.5°F (18.6°C) and max 79.7°F (26.5°C). A minimal variation is noted in Lansing's average high-temperature at the onset of August, reaching a still moderately hot 79.7°F (26.5°C) 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 Lansing, Illinois, with an average temperature ranging between min 59°F (15°C) and max 73.6°F (23.1°C). A modest decline in the average high-temperature is seen during September, decreasing from 79.7°F (26.5°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »Weather in October
October, like September, in Lansing, Illinois, is another comfortable autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 60.8°F (16°C). October comes with a drop in the average high-temperature, falling from September's warm 73.6°F (23.1°C) to a refreshing 60.8°F (16°C). Weather in October »Weather in November
November, the last month of the autumn in Lansing, is another chilly month, with an average temperature fluctuating between 35.4°F (1.9°C) and 46.9°F (8.3°C). The arrival of November corresponds with a temperature reduction, down from October's enjoyable 60.8°F (16°C) to a frosty 46.9°F (8.3°C). Weather in November »Weather in December
December, the first month of the winter in Lansing, is still a cold month, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 26.6°F (-3°C). Welcoming December, Lansing observes a shift in the average high-temperature, falling from November's chilly 46.9°F (8.3°C) to a wintry 36°F (2.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Lansing, 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 (29.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure
Lansing, 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:
29.97"Hg - Average pressure in June:
29.93"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 (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Lansing, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.3mph - 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:
7.6mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Lansing, IL
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Lansing, IL
- Average rainfall in January:
1.14" - Average rainfall in February:
1.3" - Average rainfall in March:
1.46" - Average rainfall in April:
2.56" - Average rainfall in May:
3.27" - Average rainfall in June:
3.39"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.72" - Average rainfall in September:
2.05" - Average rainfall in October:
1.89" - Average rainfall in November:
1.18" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
Lansing, IL
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
18.4 days - Average rainfall days in August:
16 days - Average rainfall days in September:
13 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (5.5 days).
Average snowfall
Lansing, IL
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Lansing, IL
- Average snowfall days in January:
12.5 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2.1 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:
0.3 days - Average snowfall days in November:
3.7 days - Average snowfall days in December:
9.6 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Lansing, 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 54min - Average daylight in December:
9h and 12min
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 30min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 0min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Lansing, IL
- Average sunshine days in January:
14 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
14 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
17 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.9 days).
Average UV index
Lansing, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Lansing, IL
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Lansing, 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).





