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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 Willow Hill, Illinois, is a wintry winter month, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 23.4°F (-4.8°C). January, noted for its average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.4°F (-4.8°C), is considered the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Willow Hill, is also an icy month, with an average temperature ranging between min 27.5°F (-2.5°C) and max 40.6°F (4.8°C). With February's arrival, Willow Hill notes an average high-temperature of a still wintry 40.6°F (4.8°C), closely following the trend of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Willow Hill, Illinois, with an average temperature fluctuating between 52.7°F (11.5°C) and 37°F (2.8°C). The transition from February to March brings a temperature rise, with average high-temperatures increasing from an icy 40.6°F (4.8°C) to a cool 52.7°F (11.5°C). Weather in March »
Weather in April
April is a refreshing spring month in Willow Hill, Illinois, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 46.9°F (8.3°C). April sees a rise in the average high-temperature, climbing from a cool 52.7°F (11.5°C) in March to a refreshing 64°F (17.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Willow Hill, Illinois, with an average temperature fluctuating between 57°F (13.9°C) and 73.8°F (23.2°C). Willow Hill's transition into May is marked by a rise in the average high-temperature, advancing from a comfortable 64°F (17.8°C) in April to a warm 73.8°F (23.2°C). Weather in May »
Weather in June
June, the first month of the summer in Willow Hill, is also a moderately hot month, with an average temperature varying between 82°F (27.8°C) and 65.5°F (18.6°C). In Willow Hill, the average high-temperature in June slightly rises, from a warm 73.8°F (23.2°C) in May, to a still moderately hot 82°F (27.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Willow Hill, Illinois, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 66.9°F (19.4°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 83.7°F (28.7°C) and a low of 66.9°F (19.4°C). The heat index for July is computed to be a tropical 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Willow Hill, Illinois, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 64.6°F (18.1°C). As Willow Hill transitions from July to August, the average high-temperatures adjust to a still moderately hot 82.2°F (27.9°C), nearly the same as the previous 83.7°F (28.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Willow Hill, Illinois, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 59.4°F (15.2°C). September's presence marks an average high-temperature of a still moderately hot 77.9°F (25.5°C), subtly varied from August's 82.2°F (27.9°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Willow Hill, Illinois, with an average temperature ranging between min 48.6°F (9.2°C) and max 65.5°F (18.6°C). October suggests a modest reduction in the average high-temperature, shifting from a warm 77.9°F (25.5°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Willow Hill, is another cool month, with an average temperature ranging between max 51.3°F (10.7°C) and min 37.4°F (3°C). The transition into November involves a decrease in the average high-temperature, falling from an enjoyable 65.5°F (18.6°C) in October to a cool 51.3°F (10.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Willow Hill, Illinois, with an average temperature ranging between max 41.2°F (5.1°C) and min 29.7°F (-1.3°C). The decrease of average high-temperatures is mild in December, with a decline from a fresh 51.3°F (10.7°C) in November to an icy 41.2°F (5.1°C). Weather in December »
Updated: Jul 27, 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 month is the coldest?
January, characterized by an average high temperature of 36°F (2.2°C) and a low temperature of 23.4°F (-4.8°C), is generally the coldest month.
How much does it rain in Willow Hill?
In Willow Hill, during the entire year, the rain falls for 158.3 days and collects up to 35.12" (892mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 6.3 days and accumulates 2.6" (66mm) of snow.
How much does it snow?
In Willow Hill, during the entire year, snow falls for 20.7 days and aggregates up to 7.13" (181mm) of snow.
What is the month with the least sunshine in Willow Hill?
The month with the least sunshine in Willow Hill is January, with an average of 4.2h of sunshine.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
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 rainiest month?
April is the month with the most rainfall. Rain falls for 15.4 days and accumulates 5.04" (128mm) of precipitation.
When it does not snow?
May through October are months without snowfall.
When are the longest days in Willow Hill?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month has the most sunshine in Willow Hill?
The month with the most sunshine is June, with an average of 10.4h of sunshine.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What time of the year is the hottest?
The month of July, characterized by an average high of 83.7°F (28.7°C) and a low of 66.9°F (19.4°C), is recognized as the warmest.
What is the most humid month?
The months with the highest humidity are July and August, with an average relative humidity of 81%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.89" (48mm) of precipitation.
What is the least humid month?
The least humid month is October, 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 30min of daylight.
Average temperature
Willow Hill, IL
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Willow 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:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"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:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Willow Hill, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Willow Hill, IL
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Willow Hill, IL
- Average rainfall in January:
2.52" - Average rainfall in February:
1.93" - Average rainfall in March:
2.91" - Average rainfall in April:
5.04" - Average rainfall in May:
3.86" - Average rainfall in June:
3.54"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.68" - Average rainfall in September:
1.89" - Average rainfall in October:
2.83" - Average rainfall in November:
2.24" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Willow Hill, IL
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
13 days - Average rainfall days in October:
11 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall
Willow Hill, IL
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Willow Hill, IL
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.5 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:
1.4 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Willow 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 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 1min - Average daylight in December:
9h and 3min
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 30min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 3min - 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 12min).
Average sunshine days
Willow Hill, IL
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index
Willow Hill, 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
Willow Hill, IL
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility
Willow 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).
Willow Hill, Illinois, USA
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