Expand
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 Buffalo, Illinois, is a wintry winter month, with an average temperature fluctuating between 20.8°F (-6.2°C) and 33.1°F (0.6°C). With average high temperatures of 33.1°F (0.6°C) and lows of 20.8°F (-6.2°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Buffalo, Illinois, with an average temperature ranging between max 37.9°F (3.3°C) and min 25°F (-3.9°C). Transitioning into February, Buffalo records an average high-temperature of a still cold 37.9°F (3.3°C), almost identical to January's 33.1°F (0.6°C). Weather in February »
Weather in March
March, the first month of the spring in Buffalo, is a cool month, with an average temperature ranging between min 35.6°F (2°C) and max 51.1°F (10.6°C). In March, the average high-temperature increases from an icy 37.9°F (3.3°C) in February to a fresh 51.1°F (10.6°C). Weather in March »
Weather in April
April is a comfortable spring month in Buffalo, Illinois, with an average temperature varying between 63.1°F (17.3°C) and 46.2°F (7.9°C). The start of April signals an increase in the average high-temperature, moving from a cool 51.1°F (10.6°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Buffalo, Illinois, with an average temperature varying between 56.5°F (13.6°C) and 72.9°F (22.7°C). With the transition into May, Buffalo experiences an increase in average high-temperatures, moving up from a comfortable 63.1°F (17.3°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Buffalo, is a moderately hot month, with an average temperature ranging between min 64.4°F (18°C) and max 81.1°F (27.3°C). As June begins, there's a slight increase in the average high-temperature, moving from an agreeable 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Buffalo, Illinois, with an average temperature varying between 82.8°F (28.2°C) and 66°F (18.9°C). Buffalo's warmest weather arrives in July, when temperatures average a high of 82.8°F (28.2°C) and a low of 66°F (18.9°C). In July, the heat index is computed to be a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Buffalo, Illinois, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 64°F (17.8°C). August's advent presents an average high-temperature of a still warm 81.7°F (27.6°C), indicating a slight variation from the conditions of the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Buffalo, is also a moderately hot month, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 58.5°F (14.7°C). The arrival of September sees a recorded average high-temperature of a still moderately hot 77.2°F (25.1°C), showing little divergence from the previous month's conditions. Weather in September »
Weather in October
October, like September, in Buffalo, Illinois, is another comfortable autumn month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 64°F (17.8°C). October's onset corresponds with a shift in the average high-temperature, moving from a warm 77.2°F (25.1°C) in September to a comfortable 64°F (17.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Buffalo, Illinois, with an average temperature fluctuating between 36.5°F (2.5°C) and 50°F (10°C). During the transition into November, Buffalo observes a decrease in the average high-temperature, falling from a comfortable 64°F (17.8°C) in October to a fresh 50°F (10°C). Weather in November »
Weather in December
December, the first month of the winter in Buffalo, is still a cold month, with an average temperature ranging between max 38.7°F (3.7°C) and min 28.2°F (-2.1°C). As December arrives, Buffalo's weather displays a decrease in high-temperatures, transitioning from November's fresh 50°F (10°C) to a cold 38.7°F (3.7°C). Weather in December »
Updated: Aug 30, 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 is the coldest month?
Temperature records mark January as the coldest month, with highs averaging 33.1°F (0.6°C) and lows at 20.8°F (-6.2°C).
How many days does it rain?
Throughout the year, there are 131.5 rainfall days, and 18.54" (471mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 8 days and typically aggregates up to 1.81" (46mm) of snow.
How many days does it snow?
Throughout the year, there are 24.5 snowfall days, and 5.51" (140mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
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.
When it does not snow?
May through October are months without snowfall in Buffalo.
What is the wettest month?
June is the month with the most rainfall. Rain falls for 14.6 days and accumulates 2.36" (60mm) of precipitation.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.4h of sunshine.
What is the month with the highest UV index?
The months with the highest UV index in Buffalo are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
In Buffalo, temperatures reach their average annual highs in July, measuring 82.8°F (28.2°C) and a minimum average of 66°F (18.9°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 84%.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.83" (21mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Buffalo, IL
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.1°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Buffalo, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"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:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"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
Buffalo, IL
- Average wind speed in January:
10.4mph - 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:
8.6mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Buffalo, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Buffalo, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
0.98" - Average rainfall in March:
1.34" - Average rainfall in April:
2.05" - Average rainfall in May:
2.09" - Average rainfall in June:
2.36"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.89" - Average rainfall in September:
1.85" - Average rainfall in October:
1.46" - Average rainfall in November:
0.94" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days
Buffalo, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
17 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Buffalo, IL
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Buffalo, IL
- Average snowfall days in January:
8 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.5 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:
1.5 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Buffalo, 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:
15h and 0min
- 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: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Buffalo, IL
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.5 days).
Average UV index
Buffalo, 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
Buffalo, IL
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility
Buffalo, 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).
Buffalo, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location