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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, is a freezing cold winter month in Hillsdale, Illinois, with an average temperature ranging between min 14.9°F (-9.5°C) and max 27.9°F (-2.3°C). With average temperatures fluctuating between a high of 27.9°F (-2.3°C) and a low of 14.9°F (-9.5°C), January stands out as the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Hillsdale, is an icy month, with an average temperature fluctuating between 18.9°F (-7.3°C) and 32°F (0°C). February's arrival brings an average high-temperature of a cold 32°F (0°C), slightly deviating from January's 27.9°F (-2.3°C). Weather in February »
Weather in March
March, the first month of the spring in Hillsdale, is a frosty month, with an average temperature varying between 31.6°F (-0.2°C) and 46.4°F (8°C). A notable increase in the average high-temperature is observed during March, soaring from a wintry 32°F (0°C) in February to a chilly 46.4°F (8°C). Weather in March »
Weather in April
April in Hillsdale, Illinois, is a moderate spring month, with an average temperature fluctuating between 42.3°F (5.7°C) and 58.3°F (14.6°C). April brings a rise in Hillsdale's average high-temperature, moving from a frosty 46.4°F (8°C) in March to a refreshing 58.3°F (14.6°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Hillsdale, Illinois, with temperature in the range of an average low of 53.1°F (11.7°C) and an average high of 70°F (21.1°C). May brings a rise in Hillsdale's average high-temperature, moving from a refreshing 58.3°F (14.6°C) in April to an agreeable 70°F (21.1°C). Weather in May »
Weather in June
June, the first month of the summer in Hillsdale, is a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 61.3°F (16.3°C). Observing a minor shift, the average high-temperature during June adjusts from May's agreeable 70°F (21.1°C) to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, like June, in Hillsdale, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 80.2°F (26.8°C) and 64°F (17.8°C). In Hillsdale, Illinois, the highest average temperatures are observed in July, with a high of 80.2°F (26.8°C) and a low of 64°F (17.8°C). Weather in July »
Weather in August
August, the last month of the summer in Hillsdale, is also a moderately hot month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 61.9°F (16.6°C). Hillsdale starts August with an average high-temperature of a still moderately hot 79.9°F (26.6°C), a minor shift from July's 80.2°F (26.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Hillsdale, Illinois, with an average temperature fluctuating between 74.7°F (23.7°C) and 55.9°F (13.3°C). At the start of September, Hillsdale's average high-temperature reaches a still warm 74.7°F (23.7°C), subtly different from the preceding month. Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Hillsdale, Illinois, with an average temperature varying between 44.6°F (7°C) and 61°F (16.1°C). The decrease of average high-temperatures is mild in October, with a decline from a warm 74.7°F (23.7°C) in September to an enjoyable 61°F (16.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Hillsdale, Illinois, with an average temperature ranging between min 32.9°F (0.5°C) and max 46.2°F (7.9°C). The average high-temperature exhibits a considerable decrease in November, dropping from a comfortable 61°F (16.1°C) in October to a chilly 46.2°F (7.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Hillsdale, Illinois, with an average temperature ranging between max 34°F (1.1°C) and min 23.5°F (-4.7°C). With the onset of December, Hillsdale's average high-temperature adjusts, receding from November's chilly 46.2°F (7.9°C) to a cold 34°F (1.1°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Hillsdale?
The coldest period is January, when temperatures fluctuate between an average high of 27.9°F (-2.3°C) and a low of 14.9°F (-9.5°C).
What is the most humid month in Hillsdale?
The most humid month in Hillsdale, Illinois, is January, with an average relative humidity of 85%.
What is the driest month in Hillsdale?
January is the month with the least rainfall. Rain falls for 6.3 days and accumulates 1.34" (34mm) of precipitation.
How much does it rain in Hillsdale?
Throughout the year, in Hillsdale, there are 145.7 rainfall days, and 27.91" (709mm) of precipitation is accumulated.
When does it snow in Hillsdale?
January through April, October through December are months with snowfall in Hillsdale.
What is the snowiest month in Hillsdale?
January is the month with the most snowfall in Hillsdale, Illinois. Snow falls for 11.3 days and accumulates 4.21" (107mm) of snow.
How many days does it snow in Hillsdale?
Throughout the year, in Hillsdale, Illinois, there are 37.9 snowfall days, and 13.98" (355mm) of snow is accumulated.
What is the month with the least sunshine in Hillsdale?
The month with the least sunshine is January, with an average of 3.9h of sunshine.
What are the months with the lowest UV index in Hillsdale?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Hillsdale?
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 in Hillsdale?
The month with the most rainfall is May, when the rain falls for 18.1 days and typically aggregates up to 4.41" (112mm) of precipitation.
When it does not snow in Hillsdale?
In Hillsdale, Illinois, snow does not fall in May through September.
When are the longest days in Hillsdale?
The month with the longest days in Hillsdale, Illinois, is June, with an average of 15h and 6min of daylight.
What month is the hottest in Hillsdale?
Hillsdale's warmest month, July, generally records average temperatures ranging from a high of 80.2°F (26.8°C) to a low of 64°F (17.8°C).
What month has the most sunshine in Hillsdale?
July has the most sunshine of the year in Hillsdale, Illinois, with an average of 9.9h of sunshine.
What is the month with the highest UV index in Hillsdale?
July and August, with an average maximum UV index of 6, are months with the highest UV index.
What is the least humid month in Hillsdale?
The least humid month is October, with an average relative humidity of 72%.
What is the month with the shortest days in Hillsdale?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Hillsdale, IL
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure
Hillsdale, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Hillsdale, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Hillsdale, IL
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Hillsdale, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
1.38" - Average rainfall in March:
1.89" - Average rainfall in April:
3.23" - Average rainfall in May:
4.41" - Average rainfall in June:
3.23"
- Average rainfall in July:
2.72" - Average rainfall in August:
1.77" - Average rainfall in September:
2.09" - Average rainfall in October:
2.64" - Average rainfall in November:
1.81" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days
Hillsdale, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16.7 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Hillsdale, IL
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Hillsdale, IL
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
9.6 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.2 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:
0.4 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Hillsdale, 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 1min
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:
3h and 5min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 3min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Hillsdale, IL
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
17 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.8 days).
Average UV index
Hillsdale, IL
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Hillsdale, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Hillsdale, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Hillsdale, Illinois, USA
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