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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, like December, in Tunnel Hill, Illinois, is another cold winter month, with an average temperature ranging between min 27°F (-2.8°C) and max 40.1°F (4.5°C). January, known for its average high temperature of 40.1°F (4.5°C) and an average low temperature of 27°F (-2.8°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Tunnel Hill, is a chilly month, with an average temperature ranging between max 45.1°F (7.3°C) and min 30.7°F (-0.7°C). The start of February sees the average high-temperature at a chilly 45.1°F (7.3°C), showing little difference from January's 40.1°F (4.5°C). Weather in February »
Weather in March
March, the first month of the spring in Tunnel Hill, is a mild month, with an average temperature fluctuating between 55.8°F (13.2°C) and 39.7°F (4.3°C). With the arrival of March, the average high-temperature transitions from a frosty 45.1°F (7.3°C) in February to a refreshing 55.8°F (13.2°C). Weather in March »
Weather in April
April is a comfortable spring month in Tunnel Hill, Illinois, with an average temperature ranging between min 48.9°F (9.4°C) and max 66.6°F (19.2°C). Tunnel Hill's April weather shows an increase in high-temperatures, moving from March's moderate 55.8°F (13.2°C) to an enjoyable 66.6°F (19.2°C). Weather in April »
Weather in May
May, the last month of the spring in Tunnel Hill, is a moderately hot month, with an average temperature ranging between max 75.7°F (24.3°C) and min 57.9°F (14.4°C). With the onset of May, Tunnel Hill's average high-temperature experiences a rise, moving from April's refreshing 66.6°F (19.2°C) to a moderately hot 75.7°F (24.3°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Tunnel Hill, Illinois, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 66.2°F (19°C). With the onset of June, Tunnel Hill sees a temperature rise, with the average high-temperature moving from May's warm 75.7°F (24.3°C) to a still moderately hot 85.6°F (29.8°C). Weather in June »
Weather in July
July in Tunnel Hill, Illinois, is a hot summer month, with an average temperature fluctuating between 68.5°F (20.3°C) and 88°F (31.1°C). July registers as the month with the highest average temperatures, reaching 88°F (31.1°C) at its peak and 68.5°F (20.3°C) at the lowest. The heat index in July is appraised at a scorching 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Tunnel Hill, Illinois, with an average temperature varying between 86.5°F (30.3°C) and 66.7°F (19.3°C). The arrival of August brings an average high-temperature of a still tropical 86.5°F (30.3°C), nearly identical to July's 88°F (31.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Tunnel Hill, is still a warm month, with an average temperature ranging between max 81.1°F (27.3°C) and min 60.6°F (15.9°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's hot 86.5°F (30.3°C) to a moderately hot 81.1°F (27.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Tunnel Hill, Illinois, with an average temperature varying between 67.8°F (19.9°C) and 49.6°F (9.8°C). Tunnel Hill, Illinois, observes a minor decrease in the average high-temperature with the arrival of October, falling from September's warm 81.1°F (27.3°C) to a refreshing 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Tunnel Hill, is another cool month, with an average temperature ranging between min 38.8°F (3.8°C) and max 54.5°F (12.5°C). With November's onset, the average high-temperature recedes from October's comfortable 67.8°F (19.9°C) to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Tunnel Hill, Illinois, with an average temperature ranging between min 32.7°F (0.4°C) and max 44.8°F (7.1°C). The commencement of December indicates a shift in the average high-temperature, receding from November's cool 54.5°F (12.5°C) to a chilly 44.8°F (7.1°C). Weather in December »
Updated: Jun 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 is the coldest month?
January is the month when Tunnel Hill experiences its coldest temperatures, averaging a high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C).
How many days does it rain?
In Tunnel Hill, Illinois, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.
When does it snow in Tunnel Hill?
Months with snowfall are January through March, November and December.
How much does it snow?
Throughout the year, there are 11 snowfall days, and 1.57" (40mm) of snow is accumulated.
What are the months with the least sunshine?
January and February, with an average of 4.6h of sunshine, are months with the least sunshine in Tunnel Hill.
What are the months with the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 3.2 days and accumulates 0.67" (17mm) of snow.
What are the most humid months?
March and May, with an average relative humidity of 79%, are most humid months.
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?
April through October are months without snowfall.
When is the highest UV index in Tunnel Hill?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 12.5 days and typically aggregates up to 1.5" (38mm) of precipitation.
When are the longest days?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What are the months with the most sunshine?
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.
What is the hottest time of year?
July, with its average high-temperature of 88°F (31.1°C) and an average low-temperature of 68.5°F (20.3°C), holds the record as the warmest month.
What is the driest month?
September is the month with the least rainfall. Rain falls for 8.3 days and accumulates 0.47" (12mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 71%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Tunnel Hill, IL
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure
Tunnel Hill, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Tunnel Hill, IL
- Average wind speed in January:
9mph - Average wind speed in February:
9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.2mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Tunnel Hill, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Tunnel Hill, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
1.14" - Average rainfall in March:
1.22" - Average rainfall in April:
1.22" - Average rainfall in May:
1.34" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.42" - Average rainfall in August:
1.3" - Average rainfall in September:
0.47" - Average rainfall in October:
0.98" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days
Tunnel Hill, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall
Tunnel Hill, IL
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Tunnel Hill, IL
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.3 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:
0.1 days - Average snowfall days in November:
1 days - Average snowfall days in December:
1.9 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Tunnel Hill, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 3min - 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 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Tunnel Hill, IL
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
21.2 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index
Tunnel Hill, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Tunnel Hill, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility
Tunnel Hill, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Tunnel Hill, Illinois, USA
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