Climate and monthly weather forecastHomer, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Homer, Illinois, is another subzero cold winter month, with an average temperature varying between 31.8°F (-0.1°C) and 20.5°F (-6.4°C). The coldest time of the year is January, with temperatures averaging a high of 31.8°F (-0.1°C) and a low of 20.5°F (-6.4°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Homer, Illinois, with an average temperature varying between 24.3°F (-4.3°C) and 37°F (2.8°C). As Homer, Illinois, transitions from January to February, the average high-temperatures adjust to a wintry 37°F (2.8°C), nearly the same as the previous 31.8°F (-0.1°C). Weather in February »Weather in March
March, the first month of the spring in Homer, is a chilly month, with an average temperature varying between 49.5°F (9.7°C) and 34.7°F (1.5°C). Homer's weather shows a temperature rise with the arrival of March, moving from a cold 37°F (2.8°C) in February to a frosty 49.5°F (9.7°C). Weather in March »Weather in April
April is an enjoyable spring month in Homer, Illinois, with an average temperature fluctuating between 45.7°F (7.6°C) and 61.3°F (16.3°C). In Homer, the average high-temperature in April increases from a chilly 49.5°F (9.7°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Homer, Illinois, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 72.1°F (22.3°C). As May begins, there is an increase in the average high-temperature, moving from a comfortable 61.3°F (16.3°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Homer, Illinois, with an average temperature varying between 63.9°F (17.7°C) and 80.1°F (26.7°C). The arrival of June witnesses a small shift in the average high-temperature, moving from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.1°F (26.7°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Homer, Illinois, with an average temperature ranging between max 81.1°F (27.3°C) and min 65.1°F (18.4°C). July is the warmest month, with the temperature often reaching an average high of 81.1°F (27.3°C) and an average low of 65.1°F (18.4°C). The heat index value for July is evaluated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Homer, Illinois, with an average temperature fluctuating between 80.6°F (27°C) and 63.3°F (17.4°C). As August takes its course, Homer's average high-temperature registers at a still warm 80.6°F (27°C), closely aligning with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Homer, Illinois, with an average temperature ranging between min 58.3°F (14.6°C) and max 76.1°F (24.5°C). The advent of September signifies a minor shift to an average high-temperature of a still moderately hot 76.1°F (24.5°C), aligning closely with August. Weather in September »Weather in October
October, like September, in Homer, Illinois, is another comfortable autumn month, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 47.8°F (8.8°C). The arrival of October corresponds with a shift in temperature, down from a moderately hot 76.1°F (24.5°C) in September to an enjoyable 63.5°F (17.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Homer, Illinois, with an average temperature ranging between min 36°F (2.2°C) and max 49.1°F (9.5°C). As Homer steps into November, a marked temperature drop is observed, with the average high-temperature reducing from October's comfortable 63.5°F (17.5°C) to a chilly 49.1°F (9.5°C). Weather in November »Weather in December
December, the first month of the winter in Homer, is also an icy month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 37.6°F (3.1°C). The arrival of December signals a shift in temperature, down from a chilly 49.1°F (9.5°C) in November to an icy 37.6°F (3.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Homer, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure
Homer, IL
- Average pressure in January:
30.14"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:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Homer, IL
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Homer, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Homer, IL
- Average rainfall in January:
1.26" - Average rainfall in February:
0.98" - Average rainfall in March:
1.65" - Average rainfall in April:
2.24" - Average rainfall in May:
2.2" - Average rainfall in June:
2.01"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.54" - Average rainfall in September:
0.94" - Average rainfall in October:
1.5" - Average rainfall in November:
1.14" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days
Homer, IL
- Average rainfall days in January:
6 days - Average rainfall days in February:
6 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.7 days - Average rainfall days in August:
13 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (6 days).
Average snowfall
Homer, IL
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Homer, IL
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.6 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:
0.1 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Homer, 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 24min - 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 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 24min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Homer, IL
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index
Homer, 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
Homer, IL
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Homer, 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).





