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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, is an icy winter month in Shelbyville, Illinois, with an average temperature ranging between max 34.3°F (1.3°C) and min 21.9°F (-5.6°C). The coldest month is January, with an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 21.9°F (-5.6°C). Weather in January »
Weather in February
February, the last month of the winter in Shelbyville, is another cold month, with an average temperature ranging between min 25.9°F (-3.4°C) and max 39.2°F (4°C). The arrival of February records an average high-temperature of a still cold 39.2°F (4°C), closely related to the 34.3°F (1.3°C) observed in January. Weather in February »
Weather in March
March, the first month of the spring in Shelbyville, is a cool month, with an average temperature fluctuating between 51.3°F (10.7°C) and 36.1°F (2.3°C). As March arrives, a rise in the average high-temperature is observed, moving from an icy 39.2°F (4°C) in February to a cool 51.3°F (10.7°C). Weather in March »
Weather in April
April in Shelbyville, Illinois, is a comfortable spring month, with an average temperature fluctuating between 46.4°F (8°C) and 62.6°F (17°C). With the onset of April, Shelbyville's average high-temperature experiences a rise, moving from March's cool 51.3°F (10.7°C) to an enjoyable 62.6°F (17°C). Weather in April »
Weather in May
May, the last month of the spring in Shelbyville, is a pleasant month, with an average temperature fluctuating between 73°F (22.8°C) and 56.7°F (13.7°C). May indicates a change in the average high-temperature, moving up from a refreshing 62.6°F (17°C) in April to a pleasant 73°F (22.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Shelbyville, Illinois, with an average temperature ranging between min 64.6°F (18.1°C) and max 81.1°F (27.3°C). The shift into June brings a slight increase in the average high-temperature, moving from a pleasant 73°F (22.8°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, like June, in Shelbyville, Illinois, is another warm summer month, with an average temperature fluctuating between 82.8°F (28.2°C) and 66.2°F (19°C). July, recognised by an average high temperature of 82.8°F (28.2°C) and a low of 66.2°F (19°C), is Shelbyville's warmest month. Throughout July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Shelbyville, is also a moderately hot month, with an average temperature varying between 81.7°F (27.6°C) and 64°F (17.8°C). August's presence marks an average high-temperature of a still moderately hot 81.7°F (27.6°C), subtly varied from July's 82.8°F (28.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Shelbyville, is also a moderately hot month, with an average temperature ranging between min 58.6°F (14.8°C) and max 77.2°F (25.1°C). Shelbyville's shift into September is marked by a subtle change to a still moderately hot 77.2°F (25.1°C) from August's 81.7°F (27.6°C) in temperature. Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Shelbyville, Illinois, with an average temperature varying between 64.2°F (17.9°C) and 48.2°F (9°C). A change in temperatures is noted as September gives way to October, with average highs reducing from a warm 77.2°F (25.1°C) to a refreshing 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Shelbyville, Illinois, with an average temperature ranging between min 36.5°F (2.5°C) and max 50.4°F (10.2°C). In Shelbyville, the beginning of November is marked by a lowered average high-temperature, shifting from October's refreshing 64.2°F (17.9°C) to a fresh 50.4°F (10.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Shelbyville, Illinois, with an average temperature fluctuating between 28.4°F (-2°C) and 39.2°F (4°C). Onset of December witnesses a reduction in the average high-temperature, falling from a cool 50.4°F (10.2°C) in November to an icy 39.2°F (4°C). Weather in December »
Updated: Jul 19, 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?
Shelbyville's coldest weather arrives in January, when temperatures average a high of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).
How much does it rain in Shelbyville?
Throughout the year, there are 116.5 rainfall days, and 11.54" (293mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How many days does it snow?
In Shelbyville, during the entire year, snow falls for 19 days and aggregates up to 2.8" (71mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month?
February is the month with the least rainfall. Rain falls for 4.9 days and accumulates 0.55" (14mm) of precipitation.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 5.9 days and accumulates 0.83" (21mm) of snow.
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.
When it does not snow?
In Shelbyville, snow does not fall in April through October.
What is the rainiest month?
The month with the most rainfall is June, when the rain falls for 12.7 days and typically aggregates up to 1.46" (37mm) of precipitation.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.4h of sunshine.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
Temperature records mark July as the warmest month, with highs averaging 82.8°F (28.2°C) and lows at 66.2°F (19°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 83%.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Shelbyville, IL
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Shelbyville, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"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:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Shelbyville, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Shelbyville, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Shelbyville, IL
- Average rainfall in January:
0.71" - Average rainfall in February:
0.55" - Average rainfall in March:
0.87" - Average rainfall in April:
1.3" - Average rainfall in May:
1.26" - Average rainfall in June:
1.46"
- Average rainfall in July:
1.22" - Average rainfall in August:
1.22" - Average rainfall in September:
0.79" - Average rainfall in October:
0.91" - Average rainfall in November:
0.59" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is June (1.46").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days
Shelbyville, IL
- Average rainfall days in January:
5.1 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
10.9 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Shelbyville, IL
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Shelbyville, IL
- Average snowfall days in January:
5.5 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shelbyville, IL
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Shelbyville, IL
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
16.8 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
20.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
22.1 days
The month with the most sunshine days is December (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index
Shelbyville, 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
Shelbyville, IL
The months with the most cloud cover are January and February (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility
Shelbyville, IL
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Shelbyville, Illinois, USA
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