Climate and monthly weather forecastLondon Mills, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in London Mills, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 29.8°F (-1.2°C). In London Mills, the lowest temperatures are generally noted in January, averaging a high of 29.8°F (-1.2°C) and a low of 17.8°F (-7.9°C). Weather in January »Weather in February
February, the last month of the winter in London Mills, is a cold month, with an average temperature fluctuating between 21.7°F (-5.7°C) and 34.9°F (1.6°C). The average high-temperature during February is an icy 34.9°F (1.6°C), almost matching the conditions of the preceding month. Weather in February »Weather in March
March, the first month of the spring in London Mills, is a frosty month, with an average temperature varying between 33.3°F (0.7°C) and 48.2°F (9°C). The rise of average high-temperatures is seen in March, with an increase from a wintry 34.9°F (1.6°C) in February to a chilly 48.2°F (9°C). Weather in March »Weather in April
April is a moderate spring month in London Mills, Illinois, with an average temperature varying between 43.7°F (6.5°C) and 60.4°F (15.8°C). London Mills's April weather shows an increase in high-temperatures, moving from March's chilly 48.2°F (9°C) to a refreshing 60.4°F (15.8°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in London Mills, Illinois, with an average temperature ranging between min 54.5°F (12.5°C) and max 71.1°F (21.7°C). May sees a rise in the average high-temperature, climbing from a refreshing 60.4°F (15.8°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »Weather in June
June, the first month of the summer in London Mills, is a moderately hot month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.5°F (26.4°C). The commencement of June sees a minor shift in the average high-temperature, moving from an agreeable 71.1°F (21.7°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »Weather in July
July, like June, in London Mills, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 82°F (27.8°C) and 64.9°F (18.3°C). London Mills experiences its highest temperatures in July, with an average peak of 82°F (27.8°C) and a low of 64.9°F (18.3°C). July's mean heat index is evaluated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in London Mills, is another warm month, with an average temperature ranging between min 63.3°F (17.4°C) and max 81.1°F (27.3°C). London Mills, Illinois, in August witnesses an average high-temperature of a still moderately hot 81.1°F (27.3°C), indicating a slight variation from July's 82°F (27.8°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in London Mills, Illinois, with an average temperature varying between 76.1°F (24.5°C) and 56.7°F (13.7°C). The arrival of September sees a recorded average high-temperature of a still warm 76.1°F (24.5°C), showing little divergence from the previous month's conditions. Weather in September »Weather in October
October, like September, in London Mills, Illinois, is another enjoyable autumn month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 61.7°F (16.5°C). London Mills in October showcases a distinct temperature shift, moving from an average high of a warm 76.1°F (24.5°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »Weather in November
November, the last month of the autumn in London Mills, is also a frosty month, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 47.5°F (8.6°C). London Mills in November experiences a subtle temperature decline, with average high-temperatures reducing from a refreshing 61.7°F (16.5°C) in October to a chilly 47.5°F (8.6°C). Weather in November »Weather in December
December, the first month of the winter in London Mills, is also an icy month, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 35.8°F (2.1°C). The average high-temperature decreases in December, shifting from a chilly 47.5°F (8.6°C) in November to an icy 35.8°F (2.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
London Mills, IL
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
London Mills, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
London Mills, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.7mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.8mph
- 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:
9.4mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
London Mills, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
London Mills, IL
- Average rainfall in January:
0.59" - Average rainfall in February:
0.67" - Average rainfall in March:
0.98" - Average rainfall in April:
1.61" - Average rainfall in May:
2.2" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.18" - Average rainfall in September:
1.22" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").
Average rainfall days
London Mills, IL
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
London Mills, IL
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
London Mills, IL
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
1.1 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:
2.3 days - Average snowfall days in December:
7.1 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
London Mills, 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 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - 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 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 6min
- 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:
5h and 36min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
London Mills, IL
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
16.5 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index
London Mills, 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
London Mills, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
London Mills, IL
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





