Climate and monthly weather forecastLeonore, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Leonore, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 29.5°F (-1.4°C). The coldest temperatures occur during January, when averages reach a peak of 29.5°F (-1.4°C) and a low of 17.8°F (-7.9°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Leonore, Illinois, with an average temperature varying between 20.8°F (-6.2°C) and 33.4°F (0.8°C). The advent of February denotes an average high-temperature of an icy 33.4°F (0.8°C), subtly different from January's 29.5°F (-1.4°C). Weather in February »Weather in March
March, the first month of the spring in Leonore, is a chilly month, with temperature in the range of an average high of 47.5°F (8.6°C) and an average low of 32.7°F (0.4°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a wintry 33.4°F (0.8°C) to a frosty 47.5°F (8.6°C). Weather in March »Weather in April
April in Leonore, Illinois, is a mild spring month, with an average temperature fluctuating between 42.8°F (6°C) and 59.4°F (15.2°C). The shift into April is characterized by a rise in the average high-temperature, transitioning from March's frosty 47.5°F (8.6°C) to a refreshing 59.4°F (15.2°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Leonore, Illinois, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 54°F (12.2°C). May signals a shift in the average high-temperature, moving from April's refreshing 59.4°F (15.2°C) to a pleasant 71.1°F (21.7°C). Weather in May »Weather in June
June, the first month of the summer in Leonore, is a moderately hot month, with an average temperature fluctuating between 78.8°F (26°C) and 61.9°F (16.6°C). With the beginning of June, Leonore's average high-temperature sees a minor increase, transitioning from a pleasant 71.1°F (21.7°C) in May to a moderately hot 78.8°F (26°C). Weather in June »Weather in July
July, like June, in Leonore, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 64.4°F (18°C) and 81°F (27.2°C). July brings the highest temperatures, with an average high of 81°F (27.2°C) and an average low of 64.4°F (18°C). July's heat index is evaluated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Leonore, Illinois, with an average temperature fluctuating between 79.7°F (26.5°C) and 62.2°F (16.8°C). August denotes a minimal variation in the average high-temperature to a still moderately hot 79.7°F (26.5°C) from July's 81°F (27.2°C). Weather in August »Weather in September
September, the first month of the autumn in Leonore, is still a warm month, with an average temperature varying between 56.5°F (13.6°C) and 75°F (23.9°C). The transition into September is marked with an average high-temperature of a still moderately hot 75°F (23.9°C), showing an insignificant shift from August's 79.7°F (26.5°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Leonore, Illinois, with an average temperature fluctuating between 61.7°F (16.5°C) and 46°F (7.8°C). As October commences, the average high-temperature shows a reduction, transitioning from a warm 75°F (23.9°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 Leonore, is another chilly month, with an average temperature ranging between min 34°F (1.1°C) and max 47.3°F (8.5°C). The arrival of November is marked by a notable decrease in high-temperatures, falling from an enjoyable 61.7°F (16.5°C) in October to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
December, the first month of the winter in Leonore, is also a wintry month, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 25.5°F (-3.6°C). Leonore's December weather features a mild decline in high-temperatures, reducing from a frosty 47.3°F (8.5°C) in November to a wintry 35.6°F (2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Leonore, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Leonore, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Leonore, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Leonore, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Leonore, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.3" - Average rainfall in March:
1.65" - Average rainfall in April:
3.11" - Average rainfall in May:
3.39" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.28" - Average rainfall in September:
1.85" - Average rainfall in October:
2.36" - Average rainfall in November:
1.3" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Leonore, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Leonore, IL
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Leonore, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
1.6 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Leonore, IL
- Average daylight in January:
9h and 36min - 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 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 18min
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 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 24min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Leonore, IL
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index
Leonore, 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
Leonore, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Leonore, 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).





