Climate and monthly weather forecastSunny Hill, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Sunny Hill, Illinois, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 28.4°F (-2°C). With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.2°F (-8.8°C), January is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Sunny Hill, is a wintry month, with an average temperature varying between 33.1°F (0.6°C) and 19.9°F (-6.7°C). Sunny Hill records an average high-temperature of a wintry 33.1°F (0.6°C) as February arrives, nearly mirroring the previous month's climate. Weather in February »Weather in March
March, the first month of the spring in Sunny Hill, is a chilly month, with an average temperature varying between 32.4°F (0.2°C) and 46.9°F (8.3°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a cold 33.1°F (0.6°C) to a frosty 46.9°F (8.3°C). Weather in March »Weather in April
April in Sunny Hill, Illinois, is a mild spring month, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59.2°F (15.1°C). April brings a temperature change, with average high-temperatures moving from March's chilly 46.9°F (8.3°C) to a mild 59.2°F (15.1°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Sunny Hill, Illinois, with an average temperature varying between 70.5°F (21.4°C) and 53.6°F (12°C). As May arrives, Sunny Hill's weather shows an increase in high-temperatures, moving from April's mild 59.2°F (15.1°C) to an agreeable 70.5°F (21.4°C). Weather in May »Weather in June
June, the first month of the summer in Sunny Hill, is a moderately hot month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 79°F (26.1°C). The onset of June introduces a subtle rise in the average high-temperature, nudging from a pleasant 70.5°F (21.4°C) in May to a warm 79°F (26.1°C). Weather in June »Weather in July
July, like June, in Sunny Hill, Illinois, is another warm summer month, with an average temperature fluctuating between 81.5°F (27.5°C) and 64.9°F (18.3°C). Sunny Hill's temperatures tend to reach their peak averages in July, with a high of 81.5°F (27.5°C) and a low of 64.9°F (18.3°C). The average heat index in July is calculated to be a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Sunny Hill, Illinois, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 63°F (17.2°C). The transition into August reveals an average high-temperature of a still moderately hot 80.4°F (26.9°C), mirroring a close resemblance to July. Weather in August »Weather in September
September, the first month of the autumn in Sunny Hill, is also a moderately hot month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.4°F (24.1°C). The start of September sees the average high-temperature at a still moderately hot 75.4°F (24.1°C), showing little difference from August's 80.4°F (26.9°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Sunny Hill, Illinois, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 45.1°F (7.3°C). A subtle decrease in the average high-temperature marks October, falling from September's warm 75.4°F (24.1°C) to a comfortable 61.3°F (16.3°C). Weather in October »Weather in November
November, the last month of the autumn in Sunny Hill, is another chilly month, with an average temperature varying between 46.9°F (8.3°C) and 33.1°F (0.6°C). In Sunny Hill, the average high-temperature in November significantly decreases from a comfortable 61.3°F (16.3°C) in October to a frosty 46.9°F (8.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Sunny Hill, Illinois, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 24.1°F (-4.4°C). December brings a decrease in the average high-temperature, falling from November's frosty 46.9°F (8.3°C) to a wintry 34.7°F (1.5°C). Weather in December »Updated: Aug 28, 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
January brings the lowest temperatures, with an average high of 28.4°F (-2°C) and an average low of 16.2°F (-8.8°C).
The months with the highest humidity are January and July, with an average relative humidity of 83%.
In Sunny Hill, during the entire year, the rain falls for 143.6 days and collects up to 27.99" (711mm) of precipitation.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 11.2 days and accumulates 4.09" (104mm) of snow.
Throughout the year, there are 36.5 snowfall days, and 13.5" (343mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Sunny Hill.
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.
May is the month with the most rainfall. Rain falls for 18.2 days and accumulates 4.45" (113mm) of precipitation.
May through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 6min of daylight.
July is the month when Sunny Hill's temperatures reach their peak, with averages of 81.5°F (27.5°C) and lows of 64.9°F (18.3°C).
With an average of 10.2h of sunshine, July has the most sunshine of the year.
July is the month with the highest UV index, with an average maximum UV index of 6.
October is the least humid month, with an average relative humidity of 71%.
December is the month with the least rainfall. Rain falls for 7.4 days and accumulates 1.26" (32mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Sunny Hill, IL
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.4°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure
Sunny Hill, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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 (29.9"Hg).
Average wind speed
Sunny Hill, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity
Sunny Hill, IL
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Sunny Hill, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.42" - Average rainfall in March:
2.01" - Average rainfall in April:
3.23" - Average rainfall in May:
4.45" - Average rainfall in June:
3.23"
- Average rainfall in July:
2.83" - Average rainfall in August:
1.73" - Average rainfall in September:
2.13" - Average rainfall in October:
2.48" - Average rainfall in November:
1.85" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days
Sunny Hill, IL
- Average rainfall days in January:
5 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
15.4 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).
Average snowfall
Sunny Hill, IL
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Sunny Hill, IL
- Average snowfall days in January:
11.2 days - Average snowfall days in February:
9.2 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
0.9 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:
0.1 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Sunny Hill, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Sunny Hill, IL
- Average sunshine days in January:
15.4 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Sunny Hill, IL
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Sunny Hill, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Sunny 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).
