Climate and monthly weather forecastWalnut Hill, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Walnut Hill, Illinois, with an average temperature varying between 37.2°F (2.9°C) and 24.3°F (-4.3°C). In Walnut Hill, the lowest average temperatures are observed in January, with a high of 37.2°F (2.9°C) and a low of 24.3°F (-4.3°C). Weather in January »Weather in February
February, the last month of the winter in Walnut Hill, is also a wintry month, with an average temperature varying between 42.1°F (5.6°C) and 28.2°F (-2.1°C). With the onset of February, a modest change to a still wintry 42.1°F (5.6°C) from January's 37.2°F (2.9°C) is noted in high-temperature. Weather in February »Weather in March
March, the first month of the spring in Walnut Hill, is a fresh month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 53.8°F (12.1°C). As March arrives, Walnut Hill's weather shows an increase in high-temperatures, moving from February's icy 42.1°F (5.6°C) to a fresh 53.8°F (12.1°C). Weather in March »Weather in April
April is a comfortable spring month in Walnut Hill, Illinois, with an average temperature varying between 64.6°F (18.1°C) and 47.7°F (8.7°C). April's onset brings a rise in the average high-temperature, moving from a fresh 53.8°F (12.1°C) in March to a refreshing 64.6°F (18.1°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Walnut Hill, Illinois, with an average temperature varying between 74.5°F (23.6°C) and 57.7°F (14.3°C). May's onset is marked by a temperature increase, moving from a refreshing 64.6°F (18.1°C) in April to a warm 74.5°F (23.6°C). Weather in May »Weather in June
June, the first month of the summer in Walnut Hill, is also a moderately hot month, with an average temperature varying between 83.3°F (28.5°C) and 66.4°F (19.1°C). June witnesses a subtle temperature ascent, adjusting from a moderately hot 74.5°F (23.6°C) in May to a still warm 83.3°F (28.5°C). Weather in June »Weather in July
July, like June, in Walnut Hill, Illinois, is another warm summer month, with an average temperature fluctuating between 67.6°F (19.8°C) and 84.9°F (29.4°C). The temperatures reach their highest averages in July, with highs of 84.9°F (29.4°C) and lows of 67.6°F (19.8°C). In July, the average heat index is appraised at a very hot 96.8°F (36°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Walnut Hill, Illinois, with an average temperature fluctuating between 83.8°F (28.8°C) and 65.8°F (18.8°C). August reports an average high-temperature of a still warm 83.8°F (28.8°C), slightly varied from July's 84.9°F (29.4°C). Weather in August »Weather in September
September, the first month of the autumn in Walnut Hill, is also a moderately hot month, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 59.9°F (15.5°C). The onset of September is marked by a minor decrease in temperature, transitioning from 83.8°F (28.8°C) in August to a still moderately hot 78.4°F (25.8°C). Weather in September »Weather in October
October, like September, in Walnut Hill, Illinois, is another enjoyable autumn month, with an average temperature varying between 49.1°F (9.5°C) and 66.2°F (19°C). Walnut Hill's weather in October involves a decrease in the average high-temperature, moving down from September's moderately hot 78.4°F (25.8°C) to a comfortable 66.2°F (19°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Walnut Hill, Illinois, with an average temperature ranging between min 37.9°F (3.3°C) and max 52.3°F (11.3°C). The beginning of November marks a decrease in the average high-temperature, transitioning from an enjoyable 66.2°F (19°C) in October to a fresh 52.3°F (11.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Walnut Hill, Illinois, with an average temperature fluctuating between 30.6°F (-0.8°C) and 41.9°F (5.5°C). In Walnut Hill, the beginning of December is marked by a lowered average high-temperature, shifting from November's fresh 52.3°F (11.3°C) to an icy 41.9°F (5.5°C). Weather in December »Updated: Feb 12, 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, on average, is the coldest month in Walnut Hill, registering a high temperature of 37.2°F (2.9°C) and a low of 24.3°F (-4.3°C).
In Walnut Hill, during the entire year, the rain falls for 83.2 days and collects up to 6.81" (173mm) of precipitation.
Months with snowfall in Walnut Hill are January through March, November and December.
January is the month with the most snowfall in Walnut Hill. Snow falls for 3.8 days and accumulates 0.28" (7mm) of snow.
In Walnut Hill, during the entire year, snow falls for 11.9 days and aggregates up to 0.79" (20mm) of snow.
The month with the least sunshine is January, with an average of 4.4h of sunshine.
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Walnut Hill, Illinois.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Walnut Hill, Illinois, 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.
The months with the most rainfall are April and July, with an average 0.75" (19mm) of precipitation.
In Walnut Hill, snow does not fall in April through October.
The months with the highest humidity in Walnut Hill, Illinois, are May and July, with an average relative humidity of 80%.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Walnut Hill.
The month with the longest days in Walnut Hill is June, with an average of 14h and 48min of daylight.
The months with the most sunshine in Walnut Hill, Illinois, are June and July, with an average of 10.3h of sunshine.
Walnut Hill, Illinois, records the warmest temperatures in July, averaging a high of 84.9°F (29.4°C) and a low of 67.6°F (19.8°C).
September is the month with the least rainfall in Walnut Hill, Illinois. Rain falls for 6.3 days and accumulates 0.24" (6mm) of precipitation.
With an average relative humidity of 71%, October is the least humid month in Walnut Hill.
December has the shortest days of the year in Walnut Hill, Illinois, with an average of 9h and 30min of daylight.
Average temperature
Walnut Hill, IL
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Walnut 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:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"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
Walnut Hill, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
10mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.3mph - Average wind speed in November:
9mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity
Walnut Hill, IL
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Walnut Hill, IL
- Average rainfall in January:
0.55" - Average rainfall in February:
0.35" - Average rainfall in March:
0.63" - Average rainfall in April:
0.75" - Average rainfall in May:
0.71" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.63" - Average rainfall in September:
0.24" - Average rainfall in October:
0.67" - Average rainfall in November:
0.47" - Average rainfall in December:
0.43"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days
Walnut Hill, IL
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
9.7 days - Average rainfall days in May:
10.1 days - Average rainfall days in June:
8.1 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
7.4 days - Average rainfall days in September:
6.3 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall
Walnut Hill, IL
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Walnut Hill, IL
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 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:
0.6 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Walnut Hill, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Walnut Hill, IL
- Average sunshine days in January:
24.5 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
20.7 days - Average sunshine days in April:
18.9 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
17.7 days
- Average sunshine days in July:
17.1 days - Average sunshine days in August:
20.3 days - Average sunshine days in September:
21.4 days - Average sunshine days in October:
23.5 days - Average sunshine days in November:
23 days - Average sunshine days in December:
24.5 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index
Walnut 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, November and December (UV index 2).
Average cloud cover
Walnut Hill, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Walnut 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).
