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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, in Herscher, Illinois, is a freezing cold winter month, with an average temperature ranging between max 30°F (-1.1°C) and min 18.3°F (-7.6°C). In Herscher, January is the coldest month, with temperatures averaging a high of 30°F (-1.1°C) and a low of 18.3°F (-7.6°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Herscher, Illinois, with an average temperature ranging between min 21.6°F (-5.8°C) and max 34.2°F (1.2°C). Herscher's February showcases an average high-temperature of an icy 34.2°F (1.2°C), hardly distinct from January's 30°F (-1.1°C). Weather in February »
Weather in March
March, the first month of the spring in Herscher, is a frosty month, with an average temperature varying between 33.3°F (0.7°C) and 47.3°F (8.5°C). With the arrival of March, the average high-temperature transitions from a wintry 34.2°F (1.2°C) in February to a chilly 47.3°F (8.5°C). Weather in March »
Weather in April
April is a refreshing spring month in Herscher, Illinois, with an average temperature varying between 59.5°F (15.3°C) and 43.5°F (6.4°C). As April arrives, a rise in the average high-temperature is observed, moving from a chilly 47.3°F (8.5°C) in March to a refreshing 59.5°F (15.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Herscher, Illinois, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 71.2°F (21.8°C). May signals a shift in the average high-temperature, moving from April's mild 59.5°F (15.3°C) to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
June, the first month of the summer in Herscher, is a warm month, with an average temperature ranging between min 62.2°F (16.8°C) and max 79.3°F (26.3°C). With the onset of June, Herscher experiences a subtle temperature shift, with the average high-temperature moving from a pleasant 71.2°F (21.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Herscher, Illinois, with an average temperature varying between 81.1°F (27.3°C) and 64.2°F (17.9°C). In Herscher, the highest average temperatures are observed in July, with a high of 81.1°F (27.3°C) and a low of 64.2°F (17.9°C). The heat index in July is estimated at a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Herscher, Illinois, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 79.7°F (26.5°C). Herscher observes an average high-temperature of a still moderately hot 79.7°F (26.5°C) in August, barely different from 81.1°F (27.3°C) in July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Herscher, Illinois, with an average temperature varying between 75°F (23.9°C) and 57.2°F (14°C). Welcoming September, Herscher notes an average high-temperature of a still warm 75°F (23.9°C), nearly consistent with August's 79.7°F (26.5°C). Weather in September »
Weather in October
October, like September, in Herscher, Illinois, is another comfortable autumn month, with an average temperature ranging between min 46.8°F (8.2°C) and max 61.9°F (16.6°C). Herscher's weather changes with the onset of October, slightly falling from a moderately hot 75°F (23.9°C) in September to a refreshing 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Herscher, Illinois, with an average temperature ranging between min 34.9°F (1.6°C) and max 47.5°F (8.6°C). November signals a considerable drop in Herscher's average high-temperature, reducing from an enjoyable 61.9°F (16.6°C) in October to a chilly 47.5°F (8.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Herscher, Illinois, with temperature in the range of an average low of 26.1°F (-3.3°C) and an average high of 36.3°F (2.4°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 47.5°F (8.6°C) to an icy 36.3°F (2.4°C). Weather in December »
Updated: Jul 20, 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 is the coldest month of the year, registering average temperatures as high as 30°F (-1.1°C) and as low as 18.3°F (-7.6°C).
How much does it rain?
In Herscher, during the entire year, the rain falls for 142.1 days and collects up to 22.56" (573mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 11.7 days and accumulates 2.17" (55mm) of snow.
How many days does it snow?
In Herscher, during the entire year, snow falls for 39 days and aggregates up to 9.02" (229mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.8h of sunshine.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the driest month?
February is the month with the least rainfall. Rain falls for 5 days and accumulates 1.06" (27mm) of precipitation.
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?
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.27" (83mm) of precipitation.
When it does not snow?
In Herscher, Illinois, snow does not fall in May through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What is the month with the most sunshine?
The months with the most sunshine are June and July, with an average of 9.7h of sunshine.
When is the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What are the warmest months?
Herscher's July weather, with an average high temperature of 81.1°F (27.3°C) and an average low temperature of 64.2°F (17.9°C), tends to be the warmest of the year.
What is the most humid month?
The most humid month is July, with an average relative humidity of 85%.
What is the least humid month?
With an average relative humidity of 72%, October is the least humid month.
What is the month with the shortest days in Herscher?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Herscher, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Herscher, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"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:
29.92"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:
30.01"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Herscher, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
10mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.7mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January and April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Herscher, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Herscher, IL
- Average rainfall in January:
1.14" - Average rainfall in February:
1.06" - Average rainfall in March:
1.5" - Average rainfall in April:
2.28" - Average rainfall in May:
3.27" - Average rainfall in June:
2.76"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.24" - Average rainfall in September:
1.57" - Average rainfall in October:
2.01" - Average rainfall in November:
1.18" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days
Herscher, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5 days).
Average snowfall
Herscher, IL
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Herscher, IL
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
1.4 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:
0.4 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Herscher, IL
- Average daylight in January:
9h and 4min - 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Herscher, IL
- Average sunshine days in January:
15.1 days - Average sunshine days in February:
14 days - Average sunshine days in March:
15 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.3 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.3 days).
Average UV index
Herscher, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Herscher, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility
Herscher, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Herscher, Illinois, USA
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