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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 Blackstone, Illinois, is a freezing cold winter month, with an average temperature ranging between min 17.8°F (-7.9°C) and max 29.5°F (-1.4°C). January is the month that records the lowest temperatures, with averages ranging from a high of 29.5°F (-1.4°C) to a low of 17.8°F (-7.9°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Blackstone, Illinois, with an average temperature varying between 20.8°F (-6.2°C) and 33.4°F (0.8°C). With the arrival of February, Blackstone's average high-temperature registers at an icy 33.4°F (0.8°C), indicating a subtle variation from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Blackstone, Illinois, with an average temperature ranging between min 32.7°F (0.4°C) and max 47.5°F (8.6°C). The shift from February to March brings an increase in the average high-temperature, moving from a cold 33.4°F (0.8°C) to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April in Blackstone, Illinois, is a moderate spring month, with an average temperature fluctuating between 42.8°F (6°C) and 59.4°F (15.2°C). April's arrival coincides with a rise in the average high-temperature, moving from March's chilly 47.5°F (8.6°C) to a refreshing 59.4°F (15.2°C). Weather in April »
Weather in May
May, the last month of the spring in Blackstone, is an agreeable month, with an average temperature ranging between min 54°F (12.2°C) and max 71.1°F (21.7°C). As May sets, the average high-temperature shows an increase, moving up from a mild 59.4°F (15.2°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Blackstone, Illinois, with an average temperature varying between 61.9°F (16.6°C) and 78.8°F (26°C). June's arrival brings a modest temperature shift, moving from a pleasant 71.1°F (21.7°C) in May to a warm 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Blackstone, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 64.4°F (18°C) and 81°F (27.2°C). July, with its average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.4°F (18°C), holds the record as the warmest month. The heat index in July is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Blackstone, Illinois, with an average temperature fluctuating between 62.2°F (16.8°C) and 79.7°F (26.5°C). The transition from July to August sees average high-temperatures adjusting to a still warm 79.7°F (26.5°C), from a not significantly different 81°F (27.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Blackstone, Illinois, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 56.5°F (13.6°C). Blackstone's shift into September is marked by a subtle change to a still warm 75°F (23.9°C) from August's 79.7°F (26.5°C) in temperature. Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Blackstone, Illinois, with an average temperature ranging between min 46°F (7.8°C) and max 61.7°F (16.5°C). As Blackstone enters October, the average high-temperature decreases from the a warm 75°F (23.9°C) of September to an enjoyable 61.7°F (16.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Blackstone, Illinois, with an average temperature ranging between min 34°F (1.1°C) and max 47.3°F (8.5°C). The average high-temperature exhibits a considerable decrease in November, dropping from a comfortable 61.7°F (16.5°C) in October to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Blackstone, Illinois, with an average temperature fluctuating between 25.5°F (-3.6°C) and 35.6°F (2°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 47.3°F (8.5°C) to a cold 35.6°F (2°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
What time of the year is the coldest in Blackstone?
The coldest period in Blackstone, Illinois, tends to be January, when average temperatures fluctuate between a high of 29.5°F (-1.4°C) and a low of 17.8°F (-7.9°C).
How many days does it rain in Blackstone?
Throughout the year, there are 145 rainfall days, and 25.08" (637mm) of precipitation is accumulated.
When does it snow in Blackstone?
Months with snowfall are January through April, October through December.
How much does it snow in Blackstone?
Throughout the year, there are 37.9 snowfall days, and 12.91" (328mm) of snow is accumulated.
What is the month with the least sunshine in Blackstone?
The month with the least sunshine is January, with an average of 3.8h of sunshine.
What are the months with the lowest UV index in Blackstone?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the snowiest month in Blackstone?
The month with the most snowfall in Blackstone, Illinois, is February, when snow falls for 8.8 days and typically aggregates up to 3.27" (83mm) of snow.
When is Daylight Saving Time (DST) in Blackstone?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Blackstone, 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 Blackstone?
May is the month with the most rainfall. Rain falls for 17.1 days and accumulates 3.39" (86mm) of precipitation.
When it does not snow in Blackstone?
In Blackstone, Illinois, snow does not fall in May through September.
When are the longest days in Blackstone?
The month with the longest days in Blackstone is June, with an average of 15h and 6min of daylight.
What month has the most sunshine in Blackstone?
With an average of 9.9h of sunshine, June has the most sunshine of the year in Blackstone, Illinois.
What are the months with the highest UV index in Blackstone?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the warmest month in Blackstone?
Temperature readings reach their annual highs in July, averaging 81°F (27.2°C) and a minimum average of 64.4°F (18°C).
What is the most humid month in Blackstone?
With an average relative humidity of 85%, July is the most humid month in Blackstone.
What is the least humid month in Blackstone?
October is the least humid month, with an average relative humidity of 72%.
What is the driest month in Blackstone?
December is the month with the least rainfall. Rain falls for 6.9 days and accumulates 1.18" (30mm) of precipitation.
What is the month with the shortest days in Blackstone?
The month with the shortest days in Blackstone, Illinois, is December, with an average of 9h and 18min of daylight.
Average temperature
Blackstone, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Blackstone, 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:
29.96"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:
30.1"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 (29.92"Hg).
Average wind speed
Blackstone, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Blackstone, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Blackstone, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.3" - Average rainfall in March:
1.65" - Average rainfall in April:
3.11" - Average rainfall in May:
3.39" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.28" - Average rainfall in September:
1.85" - Average rainfall in October:
2.36" - Average rainfall in November:
1.3" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Blackstone, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Blackstone, IL
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Blackstone, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
1.6 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Blackstone, 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:
4h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Blackstone, IL
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index
Blackstone, 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
Blackstone, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Blackstone, 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).
Blackstone, Illinois, USA
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