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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 Harwood Heights, Illinois, is a freezing cold winter month, with an average temperature fluctuating between 28.8°F (-1.8°C) and 18.9°F (-7.3°C). In Harwood Heights, the lowest average temperatures are observed in January, with a high of 28.8°F (-1.8°C) and a low of 18.9°F (-7.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Harwood Heights, Illinois, with temperature in the range of an average high of 32°F (0°C) and an average low of 21°F (-6.1°C). Harwood Heights marks the onset of February with an average high-temperature of a cold 32°F (0°C), a subtle shift from January's 28.8°F (-1.8°C). Weather in February »
Weather in March
March, the first month of the spring in Harwood Heights, is also a wintry month, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 31.5°F (-0.3°C). March indicates a change in the average high-temperature, moving up from a wintry 32°F (0°C) in February to a still icy 42.4°F (5.8°C). Weather in March »
Weather in April
April is a fresh spring month in Harwood Heights, Illinois, with an average temperature varying between 40.5°F (4.7°C) and 53.1°F (11.7°C). April sees a temperature increase, moving from a cold 42.4°F (5.8°C) in March to a fresh 53.1°F (11.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Harwood Heights, Illinois, with an average temperature fluctuating between 50.5°F (10.3°C) and 64°F (17.8°C). May brings an increase in the average high-temperature, progressing from a cool 53.1°F (11.7°C) in April to an enjoyable 64°F (17.8°C). Weather in May »
Weather in June
June, the first month of the summer in Harwood Heights, is a warm month, with an average temperature fluctuating between 60.4°F (15.8°C) and 73.8°F (23.2°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a refreshing 64°F (17.8°C) in May to a warm 73.8°F (23.2°C). Weather in June »
Weather in July
July, like June, in Harwood Heights, Illinois, is another warm summer month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 67.5°F (19.7°C). July, noted for its average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 67.5°F (19.7°C), is considered the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Harwood Heights, is also a moderately hot month, with an average temperature varying between 66.7°F (19.3°C) and 79.2°F (26.2°C). Harwood Heights's transition from July to August introduces an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking an insignificant variation from the 79.7°F (26.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Harwood Heights, is also an agreeable month, with an average temperature fluctuating between 59.9°F (15.5°C) and 72.3°F (22.4°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 79.2°F (26.2°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »
Weather in October
October, the same as September, in Harwood Heights, Illinois, is another mild autumn month, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 47.3°F (8.5°C). The shift to October brings a decrease in the average high-temperature, falling from a pleasant 72.3°F (22.4°C) in September to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Harwood Heights, is also a frosty month, with an average temperature ranging between min 35.2°F (1.8°C) and max 45.7°F (7.6°C). Harwood Heights, Illinois, experiences a temperature shift at the start of November, with average high-temperatures adjusting from a moderate 59.9°F (15.5°C) in October to a chilly 45.7°F (7.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Harwood Heights, Illinois, with an average temperature fluctuating between 26.1°F (-3.3°C) and 35.1°F (1.7°C). Observing a mild shift, the average high-temperature during December reduces from November's frosty 45.7°F (7.6°C) to an icy 35.1°F (1.7°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Harwood Heights?
January brings the lowest temperatures, with an average high of 28.8°F (-1.8°C) and an average low of 18.9°F (-7.3°C).
What is the most humid month in Harwood Heights?
January is the most humid month in Harwood Heights, Illinois, with an average relative humidity of 82%.
How many days does it rain in Harwood Heights?
Throughout the year, in Harwood Heights, Illinois, there are 98.2 rainfall days, and 7.36" (187mm) of precipitation is accumulated.
When does it snow in Harwood Heights?
Months with snowfall are January through May, October through December.
How much does it snow in Harwood Heights?
Throughout the year, in Harwood Heights, there are 28.5 snowfall days, and 3.07" (78mm) of snow is accumulated.
What is the month with the least sunshine in Harwood Heights?
The month with the least sunshine in Harwood Heights, Illinois, is January, with an average of 3.7h of sunshine.
What are the months with the lowest UV index in Harwood Heights?
The months with the lowest UV index in Harwood Heights, Illinois, are January and December, with an average maximum UV index of 1.
When does it snow the most in Harwood Heights?
February is the month with the most snowfall in Harwood Heights, Illinois. Snow falls for 6.6 days and accumulates 0.98" (25mm) of snow.
When is Daylight Saving Time (DST) in Harwood Heights?
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 Harwood Heights?
The month with the most rainfall in Harwood Heights is May, when the rain falls for 12.3 days and typically aggregates up to 1.06" (27mm) of precipitation.
When it does not snow in Harwood Heights?
In Harwood Heights, snow does not fall in June through September.
When are the longest days in Harwood Heights?
With an average of 15h and 12min of daylight, June has the longest days of the year.
When is the highest UV index in Harwood Heights?
The months with the highest UV index in Harwood Heights, Illinois, are June through August, with an average maximum UV index of 6.
What is the warmest month in Harwood Heights?
July proves to be the warmest month, recording an average peak temperature of 79.7°F (26.5°C) and a minimum temperature of 67.5°F (19.7°C).
What are the months with the most sunshine in Harwood Heights?
July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Harwood Heights.
What is the least humid month in Harwood Heights?
The least humid month in Harwood Heights, Illinois, is October, with an average relative humidity of 72%.
What is the driest month in Harwood Heights?
The month with the least rainfall in Harwood Heights is December, when the rain falls for 4.5 days and typically collects 0.31" (8mm) of precipitation.
What is the month with the shortest days in Harwood Heights?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Harwood Heights, Illinois.
Average temperature
Harwood Heights, IL
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Harwood Heights, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"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"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Harwood Heights, IL
- Average wind speed in January:
11.1mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.7mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.3mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Harwood Heights, IL
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Harwood Heights, IL
- Average rainfall in January:
0.39" - Average rainfall in February:
0.39" - Average rainfall in March:
0.35" - Average rainfall in April:
0.71" - Average rainfall in May:
1.06" - Average rainfall in June:
0.94"
- Average rainfall in July:
0.87" - Average rainfall in August:
0.63" - Average rainfall in September:
0.67" - Average rainfall in October:
0.67" - Average rainfall in November:
0.35" - Average rainfall in December:
0.31"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days
Harwood Heights, IL
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
10.5 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
11.5 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
9.4 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
5 days - Average rainfall days in December:
4.5 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Harwood Heights, IL
- Average snowfall in January:
0.83" - Average snowfall in February:
0.98" - Average snowfall in March:
0.12" - Average snowfall in April:
0.59" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Harwood Heights, IL
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
6.6 days - Average snowfall days in March:
3.9 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.1 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:
0.2 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harwood Heights, IL
- Average daylight in January:
9h and 3min - 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 4min - 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 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Harwood Heights, IL
- Average sunshine days in January:
22.9 days - Average sunshine days in February:
20.6 days - Average sunshine days in March:
21.1 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
16 days - Average sunshine days in June:
14.7 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
22.2 days - Average sunshine days in December:
23.3 days
The month with the most sunshine days is December (23.3 days).
The month with the least sunshine days is June (14.7 days).
Average UV index
Harwood Heights, 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 and December (UV index 1).
Average cloud cover
Harwood Heights, IL
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Harwood Heights, 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).
Harwood Heights, Illinois, USA
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