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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, the same as December, in Fairbury, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 18.5°F (-7.5°C) and 30.6°F (-0.8°C). The coldest temperatures occur during January, when averages reach a peak of 30.6°F (-0.8°C) and a low of 18.5°F (-7.5°C). Weather in January »
Weather in February
February, the last month of the winter in Fairbury, is an icy month, with an average temperature ranging between max 35.1°F (1.7°C) and min 21.7°F (-5.7°C). As Fairbury welcomes February, the average high-temperature stabilizes at an icy 35.1°F (1.7°C), showing little deviation from January's 30.6°F (-0.8°C). Weather in February »
Weather in March
March, the first month of the spring in Fairbury, is a frosty month, with an average temperature fluctuating between 33.4°F (0.8°C) and 47.7°F (8.7°C). March sees a temperature increase, moving from a wintry 35.1°F (1.7°C) in February to a chilly 47.7°F (8.7°C). Weather in March »
Weather in April
April in Fairbury, Illinois, is a refreshing spring month, with an average temperature fluctuating between 43.9°F (6.6°C) and 59.7°F (15.4°C). Fairbury sees an increase in the average high-temperature with the arrival of April, moving from March's chilly 47.7°F (8.7°C) to a moderate 59.7°F (15.4°C). Weather in April »
Weather in May
May, the last month of the spring in Fairbury, is an agreeable month, with an average temperature varying between 55°F (12.8°C) and 71.6°F (22°C). In May, the average high-temperature increases from a mild 59.7°F (15.4°C) in April to an agreeable 71.6°F (22°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Fairbury, Illinois, with an average temperature ranging between max 79.3°F (26.3°C) and min 62.8°F (17.1°C). In Fairbury, the onset of June comes with a modest high-temperature shift, transitioning from May's agreeable 71.6°F (22°C) to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Fairbury, Illinois, is another warm summer month, with an average temperature fluctuating between 80.8°F (27.1°C) and 64.6°F (18.1°C). In Fairbury, temperatures reach their average annual highs in July, measuring 80.8°F (27.1°C) and a minimum average of 64.6°F (18.1°C). The heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Fairbury, is another warm month, with an average temperature fluctuating between 62.6°F (17°C) and 79.7°F (26.5°C). Fairbury's weather in August displays an average high-temperature of a still warm 79.7°F (26.5°C), showing minor disparity from July's 80.8°F (27.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Fairbury, is still a warm month, with an average temperature fluctuating between 75.7°F (24.3°C) and 57.2°F (14°C). Fairbury, Illinois, registers an average high-temperature of a still warm 75.7°F (24.3°C) at the commencement of September, closely related to the preceding month. Weather in September »
Weather in October
October, like September, in Fairbury, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 62.2°F (16.8°C). As Fairbury enters October, the average high-temperature decreases from the a moderately hot 75.7°F (24.3°C) of September to an enjoyable 62.2°F (16.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Fairbury, Illinois, with an average temperature ranging between min 34.9°F (1.6°C) and max 47.8°F (8.8°C). November signals a significant shift in the average high-temperature, falling from October's enjoyable 62.2°F (16.8°C) to a frosty 47.8°F (8.8°C). Weather in November »
Weather in December
December, the first month of the winter in Fairbury, is still a cold month, with an average temperature varying between 36.5°F (2.5°C) and 26.1°F (-3.3°C). December brings a drop in Fairbury's average high-temperature, falling from a chilly 47.8°F (8.8°C) in November to a wintry 36.5°F (2.5°C). Weather in December »
Updated: Aug 10, 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 time of the year is the coldest?
Fairbury's January weather, marked by an average high temperature of 30.6°F (-0.8°C) and an average low temperature of 18.5°F (-7.5°C), is the coldest in the year.
What is the driest month?
The month with the least rainfall in Fairbury is January, when the rain falls for 5 days and typically collects 0.79" (20mm) of precipitation.
How much does it rain?
Throughout the year, there are 130.5 rainfall days, and 17.44" (443mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 10.6 days and typically aggregates up to 2.09" (53mm) of snow.
How many days does it snow in Fairbury?
Throughout the year, there are 30.5 snowfall days, and 7.68" (195mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.8h of sunshine.
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?
The month with the most rainfall is May, when the rain falls for 17 days and typically aggregates up to 2.56" (65mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 9.9h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the warmest month?
July registers as the month with the average highest temperatures, reaching 80.8°F (27.1°C) at its peak and 64.6°F (18.1°C) at the lowest.
What is the most humid month?
The most humid month is July, with an average relative humidity of 86%.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Fairbury, 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 (30.6°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Fairbury, 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:
30.02"Hg - Average pressure in November:
30.11"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
Fairbury, IL
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Fairbury, IL
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Fairbury, IL
- Average rainfall in January:
0.79" - Average rainfall in February:
0.87" - Average rainfall in March:
1.34" - Average rainfall in April:
1.97" - Average rainfall in May:
2.56" - Average rainfall in June:
2.05"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.5" - Average rainfall in September:
1.18" - Average rainfall in October:
1.34" - Average rainfall in November:
0.91" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days
Fairbury, IL
- Average rainfall days in January:
5 days - Average rainfall days in February:
5 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
17 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).
Average snowfall
Fairbury, IL
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Fairbury, IL
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.8 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:
0.2 days - Average snowfall days in November:
2 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Fairbury, 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 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - 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 2min
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:
3h and 5min - Average sunshine in February:
4h and 1min - 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:
9h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
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
Fairbury, IL
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
18.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Fairbury, 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
Fairbury, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Fairbury, 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).
Fairbury, Illinois, USA
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