Climate and monthly weather forecastCarterville, MO
Climate and monthly weather forecast
Weather in January
January, like December, in Carterville, Missouri, is a wintry winter month, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 27.3°F (-2.6°C). The lowest temperatures are recorded in January, with averages reaching a high of 42.3°F (5.7°C) and a low of 27.3°F (-2.6°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Carterville, Missouri, with an average temperature ranging between min 30.7°F (-0.7°C) and max 46.6°F (8.1°C). Carterville's February reports an average high-temperature of a chilly 46.6°F (8.1°C), exhibiting a minor difference from January. Weather in February »Weather in March
March, the first month of the spring in Carterville, is a mild month, with an average temperature ranging between max 57.7°F (14.3°C) and min 40.6°F (4.8°C). With the onset of March, the average high-temperature slightly shifts from February's frosty 46.6°F (8.1°C) to a refreshing 57.7°F (14.3°C). Weather in March »Weather in April
April in Carterville, Missouri, is a comfortable spring month, with an average temperature ranging between max 67.3°F (19.6°C) and min 48.4°F (9.1°C). With the arrival of April, the average high-temperature transitions from a moderate 57.7°F (14.3°C) in March to a comfortable 67.3°F (19.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Carterville, Missouri, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 57.2°F (14°C). The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from an enjoyable 67.3°F (19.6°C) to a moderately hot 74.8°F (23.8°C). Weather in May »Weather in June
June, the first month of the summer in Carterville, is still a warm month, with an average temperature varying between 85.6°F (29.8°C) and 67.1°F (19.5°C). An escalation in the average high-temperature is seen with the onset of June, moving from a warm 74.8°F (23.8°C) in May to a still moderately hot 85.6°F (29.8°C). Weather in June »Weather in July
July is a hot summer month in Carterville, Missouri, with an average temperature ranging between max 89.2°F (31.8°C) and min 69.8°F (21°C). In Carterville, the peak average temperatures are observed in July, with a high of 89.2°F (31.8°C) and a low of 69.8°F (21°C). July's average heat index is appraised at a scorching 105.8°F (41°C). Weather in July »Weather in August
August, the last month of the summer in Carterville, is another tropical month, with temperature in the range of an average high of 87.1°F (30.6°C) and an average low of 67.6°F (19.8°C). The shift into August uncovers an average high-temperature of a still tropical 87.1°F (30.6°C), subtly different from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Carterville, Missouri, with an average temperature varying between 61.2°F (16.2°C) and 79.9°F (26.6°C). The transition into September subtly indicates a reduction in the average high-temperature, down to a warm 79.9°F (26.6°C) from August's tropical 87.1°F (30.6°C). Weather in September »Weather in October
October, like September, in Carterville, Missouri, is another enjoyable autumn month, with an average temperature ranging between min 49.6°F (9.8°C) and max 67.6°F (19.8°C). October brings a decrease in the average high-temperature, falling from September's moderately hot 79.9°F (26.6°C) to a refreshing 67.6°F (19.8°C). Weather in October »Weather in November
November, the last month of the autumn in Carterville, is another refreshing month, with an average temperature varying between 56.1°F (13.4°C) and 39.2°F (4°C). The onset of November results in a decrease in the average high-temperature, receding from 67.6°F (19.8°C) in October to a still refreshing 56.1°F (13.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Carterville, Missouri, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 45.9°F (7.7°C). December's arrival corresponds with a decrease in average high-temperatures, from November's refreshing 56.1°F (13.4°C) to a chilly 45.9°F (7.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Carterville, MO
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.3°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure
Carterville, MO
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Carterville, MO
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.9mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.3mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.7mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity
Carterville, MO
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Carterville, MO
- Average rainfall in January:
1.57" - Average rainfall in February:
1.54" - Average rainfall in March:
2.8" - Average rainfall in April:
3.39" - Average rainfall in May:
5.04" - Average rainfall in June:
2.72"
- Average rainfall in July:
3.27" - Average rainfall in August:
2.87" - Average rainfall in September:
2.72" - Average rainfall in October:
2.83" - Average rainfall in November:
1.61" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days
Carterville, MO
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and December (6.8 days).
Average snowfall
Carterville, MO
The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days
Carterville, MO
- Average snowfall days in January:
3.5 days - Average snowfall days in February:
4 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0.3 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:
0.7 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Carterville, MO
- Average daylight in January:
10h and 0min - 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 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
Carterville, MO
- Average sunshine days in January:
20.5 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (12.2 days).
Average UV index
Carterville, MO
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Carterville, MO
The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are June, July and August (Cloud cover 25).
Average visibility
Carterville, MO
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).





