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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, in Bluffs, Illinois, is an icy winter month, with an average temperature varying between 21.6°F (-5.8°C) and 33.8°F (1°C). Bluffs witnesses the coldest weather in January, with temperatures averaging a high of 33.8°F (1°C) and a low of 21.6°F (-5.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Bluffs, Illinois, with an average temperature fluctuating between 25.2°F (-3.8°C) and 38.8°F (3.8°C). The advent of February reveals an average high-temperature of a still cold 38.8°F (3.8°C), showing minimal difference from the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Bluffs, Illinois, with an average temperature ranging between min 36.1°F (2.3°C) and max 51.8°F (11°C). As February gives way to March, the average high-temperature displays an increase, moving from a wintry 38.8°F (3.8°C) to a fresh 51.8°F (11°C). Weather in March »
Weather in April
April is a refreshing spring month in Bluffs, Illinois, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 63.5°F (17.5°C). April's onset witnesses a shift in the average high-temperature, moving from a fresh 51.8°F (11°C) in March to an enjoyable 63.5°F (17.5°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Bluffs, Illinois, with an average temperature fluctuating between 73°F (22.8°C) and 55.9°F (13.3°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from an enjoyable 63.5°F (17.5°C) in April to an agreeable 73°F (22.8°C). Weather in May »
Weather in June
June, the first month of the summer in Bluffs, is a moderately hot month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 81.9°F (27.7°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from a pleasant 73°F (22.8°C) to a moderately hot 81.9°F (27.7°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Bluffs, Illinois, with an average temperature ranging between max 84°F (28.9°C) and min 66.7°F (19.3°C). Bluffs's July weather, with an average high temperature of 84°F (28.9°C) and an average low temperature of 66.7°F (19.3°C), tends to be the warmest of the year. For most parts of July, the heat index is computed to be a torrid 95°F (35°C). Weather in July »
Weather in August
August, the last month of the summer in Bluffs, is also a moderately hot month, with an average temperature ranging between max 83.5°F (28.6°C) and min 64.9°F (18.3°C). Bluffs's shift from July to August is accompanied by an average high-temperature of a still moderately hot 83.5°F (28.6°C), a slight deviation from 84°F (28.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Bluffs, is still a warm month, with an average temperature varying between 78.1°F (25.6°C) and 58.8°F (14.9°C). In September, the average high-temperature marginally decreases from a warm 83.5°F (28.6°C) in August to a still moderately hot 78.1°F (25.6°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Bluffs, Illinois, with an average temperature ranging between min 47.3°F (8.5°C) and max 64.2°F (17.9°C). A decrease in the average high-temperature is observed during October, shifting from a warm 78.1°F (25.6°C) in September to a comfortable 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Bluffs, Illinois, with an average temperature ranging between max 51.1°F (10.6°C) and min 36.3°F (2.4°C). In Bluffs, the beginning of November is marked by a lowered average high-temperature, shifting from October's enjoyable 64.2°F (17.9°C) to a cool 51.1°F (10.6°C). Weather in November »
Weather in December
December, the first month of the winter in Bluffs, is also a wintry month, with an average temperature varying between 27.9°F (-2.3°C) and 39.2°F (4°C). In December, the average high-temperature goes from a fresh 51.1°F (10.6°C) in November to a wintry 39.2°F (4°C). Weather in December »
Updated: Aug 21, 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 are the coldest months?
Bluffs, Illinois, experiences its lowest temperatures in January, with an average peak of 33.8°F (1°C) and a low of 21.6°F (-5.8°C).
What is the driest month?
The months with the least rainfall are January, February and December Rain falls for 7.5 days and accumulates 1.73" (44mm) of rain.
How much does it rain?
In Bluffs, Illinois, during the entire year, the rain falls for 155.4 days and collects up to 31.69" (805mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 9.8 days and typically aggregates up to 3.46" (88mm) of snow.
How much does it snow?
Throughout the year, there are 30.2 snowfall days, and 10.75" (273mm) of snow is accumulated.
What is the month with the least sunshine in Bluffs?
The month with the least sunshine is January, with an average of 4.3h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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 18.8 days and accumulates 4.02" (102mm) of precipitation.
When it does not snow?
In Bluffs, Illinois, snow does not fall in May through September.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month has the most sunshine?
With an average of 10.3h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
The warmest month is July, with an average high-temperature of 84°F (28.9°C) and an average low-temperature of 66.7°F (19.3°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 82%.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month in Bluffs.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Bluffs, IL
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Bluffs, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"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:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Bluffs, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8mph - Average wind speed in June:
7mph
- Average wind speed in July:
6mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity
Bluffs, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Bluffs, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.73" - Average rainfall in March:
2.44" - Average rainfall in April:
3.54" - Average rainfall in May:
4.02" - Average rainfall in June:
3.9"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January, February and December (1.73").
Average rainfall days
Bluffs, IL
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
14.9 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall
Bluffs, IL
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Bluffs, IL
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.7 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:
0.1 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Bluffs, 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Bluffs, IL
- Average sunshine days in January:
15.5 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
8.6 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
17.2 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 June (8.6 days).
Average UV index
Bluffs, 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, February, November and December (UV index 2).
Average cloud cover
Bluffs, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility
Bluffs, IL
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Bluffs, Illinois, USA
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