Climate and monthly weather forecastCentralia, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Centralia, Illinois, is a wintry winter month, with an average temperature fluctuating between 37.2°F (2.9°C) and 24.3°F (-4.3°C). Centralia's coldest month, January, generally records average temperatures ranging from a high of 37.2°F (2.9°C) to a low of 24.3°F (-4.3°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Centralia, Illinois, with an average temperature fluctuating between 42.1°F (5.6°C) and 28.2°F (-2.1°C). February brings an average high-temperature of a still icy 42.1°F (5.6°C), nearly identical to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Centralia, Illinois, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 53.8°F (12.1°C). Centralia in March experiences an increase in the average high-temperature, moving from February's cold 42.1°F (5.6°C) to a fresh 53.8°F (12.1°C). Weather in March »Weather in April
April is an enjoyable spring month in Centralia, Illinois, with an average temperature ranging between min 47.7°F (8.7°C) and max 64.6°F (18.1°C). As April sets, the average high-temperature shows an increase, moving up from a cool 53.8°F (12.1°C) in March to a comfortable 64.6°F (18.1°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Centralia, Illinois, with an average temperature varying between 74.5°F (23.6°C) and 57.7°F (14.3°C). With the arrival of May, the average high-temperature transitions from a refreshing 64.6°F (18.1°C) in April to a warm 74.5°F (23.6°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Centralia, Illinois, with an average temperature varying between 66.4°F (19.1°C) and 83.3°F (28.5°C). As May transitions into June, Centralia notices a gentle rise in the average high-temperature, transitioning from a moderately hot 74.5°F (23.6°C) to a still warm 83.3°F (28.5°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Centralia, Illinois, with an average temperature ranging between min 67.6°F (19.8°C) and max 84.9°F (29.4°C). July, with its average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 67.6°F (19.8°C), holds the record as the warmest month. The heat index for July is calculated to be a torrid 96.8°F (36°C). Weather in July »Weather in August
August, the last month of the summer in Centralia, is another warm month, with an average temperature fluctuating between 65.8°F (18.8°C) and 83.8°F (28.8°C). With the transition into August, Centralia notes an average high-temperature of a still moderately hot 83.8°F (28.8°C), closely resembling July. Weather in August »Weather in September
September, the first month of the autumn in Centralia, is also a moderately hot month, with an average temperature varying between 59.9°F (15.5°C) and 78.4°F (25.8°C). September is characterized by a slight reduction in average high-temperature, easing from 83.8°F (28.8°C) in August to a still warm 78.4°F (25.8°C). Weather in September »Weather in October
October, like September, in Centralia, Illinois, is another refreshing autumn month, with an average temperature varying between 66.2°F (19°C) and 49.1°F (9.5°C). Onset of October comes with a temperature decline, the average high falling from a moderately hot 78.4°F (25.8°C) in September to an enjoyable 66.2°F (19°C). Weather in October »Weather in November
November, the last month of the autumn in Centralia, is another cool month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 37.9°F (3.3°C). Welcoming November, Centralia observes a shift in the average high-temperature, falling from October's refreshing 66.2°F (19°C) to a fresh 52.3°F (11.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Centralia, Illinois, with an average temperature varying between 41.9°F (5.5°C) and 30.6°F (-0.8°C). The arrival of December corresponds with a temperature reduction, down from November's fresh 52.3°F (11.3°C) to an icy 41.9°F (5.5°C). Weather in December »Updated: Feb 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Centralia, January is known for its average lowest temperatures, reaching a high of 37.2°F (2.9°C) and a low of 24.3°F (-4.3°C).
Throughout the year, in Centralia, Illinois, there are 83.2 rainfall days, and 6.81" (173mm) of precipitation is accumulated.
January through March, November and December are months with snowfall in Centralia.
The month with the most snowfall is January, when snow falls for 3.8 days and typically aggregates up to 0.28" (7mm) of snow.
Throughout the year, in Centralia, there are 11.9 snowfall days, and 0.79" (20mm) of snow is accumulated.
With an average of 4.4h of sunshine, January has the least sunshine of the year in Centralia, Illinois.
The months with the lowest UV index in Centralia are January, November and December, with an average maximum UV index of 2.
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.
The months with the most rainfall in Centralia are April and July, with an average 0.75" (19mm) of precipitation.
April through October are months without snowfall in Centralia.
The months with the highest humidity are May and July, with an average relative humidity of 80%.
The months with the highest UV index are May through August, with an average maximum UV index of 6.
The month with the longest days is June, with an average of 14h and 48min of daylight.
June and July, with an average of 10.3h of sunshine, are months with the most sunshine in Centralia, Illinois.
The warmest time of the year is July, with temperatures averaging a high of 84.9°F (29.4°C) and a low of 67.6°F (19.8°C).
The month with the least rainfall in Centralia, Illinois, is September, when the rain falls for 6.3 days and typically collects 0.24" (6mm) of precipitation.
October is the least humid month in Centralia, Illinois, with an average relative humidity of 71%.
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Centralia, IL
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Centralia, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"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:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Centralia, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
10mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.3mph - Average wind speed in November:
9mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity
Centralia, IL
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Centralia, IL
- Average rainfall in January:
0.55" - Average rainfall in February:
0.35" - Average rainfall in March:
0.63" - Average rainfall in April:
0.75" - Average rainfall in May:
0.71" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.63" - Average rainfall in September:
0.24" - Average rainfall in October:
0.67" - Average rainfall in November:
0.47" - Average rainfall in December:
0.43"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days
Centralia, IL
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
9.7 days - Average rainfall days in May:
10.1 days - Average rainfall days in June:
8.1 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
7.4 days - Average rainfall days in September:
6.3 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall
Centralia, IL
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Centralia, IL
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Centralia, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Centralia, IL
- Average sunshine days in January:
24.5 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
20.7 days - Average sunshine days in April:
18.9 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
17.7 days
- Average sunshine days in July:
17.1 days - Average sunshine days in August:
20.3 days - Average sunshine days in September:
21.4 days - Average sunshine days in October:
23.5 days - Average sunshine days in November:
23 days - Average sunshine days in December:
24.5 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index
Centralia, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover
Centralia, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Centralia, 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).
