Climate and monthly weather forecastJacksonville, MO
Climate and monthly weather forecast
Weather in January
January, like December, in Jacksonville, Missouri, is an icy winter month, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 35.2°F (1.8°C). January, with average temperatures reaching a high of 35.2°F (1.8°C) and a low of 21.7°F (-5.7°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Jacksonville, is also an icy month, with an average temperature fluctuating between 39.4°F (4.1°C) and 25.2°F (-3.8°C). In February, Jacksonville experiences a minor shift in meteorological conditions with average high-temperatures marked at a still cold 39.4°F (4.1°C), closely mirroring the climate in January. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Jacksonville, Missouri, with an average temperature ranging between max 52.5°F (11.4°C) and min 36.5°F (2.5°C). March's arrival brings a temperature shift, moving from a wintry 39.4°F (4.1°C) in February to a cool 52.5°F (11.4°C). Weather in March »Weather in April
April in Jacksonville, Missouri, is a comfortable spring month, with an average temperature ranging between max 64°F (17.8°C) and min 45.9°F (7.7°C). April's arrival signals a temperature shift, moving from a fresh 52.5°F (11.4°C) in March to a comfortable 64°F (17.8°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Jacksonville, Missouri, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 72.7°F (22.6°C). The start of May brings a subtle rise in the average high-temperature, moving from an enjoyable 64°F (17.8°C) in April to a pleasant 72.7°F (22.6°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Jacksonville, Missouri, with an average temperature fluctuating between 82.6°F (28.1°C) and 64.9°F (18.3°C). Noticing a change, the average high-temperature during June moves from May's pleasant 72.7°F (22.6°C) to a warm 82.6°F (28.1°C). Weather in June »Weather in July
July, like June, in Jacksonville, Missouri, is a moderately hot summer month, with temperature in the range of an average low of 67.5°F (19.7°C) and an average high of 84.9°F (29.4°C). July is Jacksonville's warmest month, registering average high temperatures of 84.9°F (29.4°C) and lows of 67.5°F (19.7°C). The average heat index in July is estimated at a sweltering 96.8°F (36°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Jacksonville, Missouri, with an average temperature varying between 65.5°F (18.6°C) and 83.8°F (28.8°C). The shift from July to August is characterized by an average high-temperature of a still warm 83.8°F (28.8°C), not significantly different from the 84.9°F (29.4°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Jacksonville, is also a moderately hot month, with an average temperature fluctuating between 78.3°F (25.7°C) and 59°F (15°C). Jacksonville records a mild change in average high-temperature during September, easing from a warm 83.8°F (28.8°C) in August to a still moderately hot 78.3°F (25.7°C). Weather in September »Weather in October
October, like September, in Jacksonville, Missouri, is another refreshing autumn month, with an average temperature fluctuating between 64.8°F (18.2°C) and 47.1°F (8.4°C). With the beginning of October, the average high-temperature shows a decrease, transitioning from a moderately hot 78.3°F (25.7°C) in September to a refreshing 64.8°F (18.2°C). Weather in October »Weather in November
November, the last month of the autumn in Jacksonville, is another cool month, with an average temperature fluctuating between 51.8°F (11°C) and 36.1°F (2.3°C). The arrival of November signals a shift in temperature, down from an enjoyable 64.8°F (18.2°C) in October to a fresh 51.8°F (11°C). Weather in November »Weather in December
December, the first month of the winter in Jacksonville, is also an icy month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 39.9°F (4.4°C). Jacksonville's December weather features a mild decline in high-temperatures, reducing from a fresh 51.8°F (11°C) in November to a cold 39.9°F (4.4°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
Jacksonville's coldest weather arrives in January, when temperatures average a high of 35.2°F (1.8°C) and a low of 21.7°F (-5.7°C).
The month with the least rainfall in Jacksonville, Missouri, is January, when the rain falls for 5.2 days and typically collects 1.18" (30mm) of precipitation.
Throughout the year, there are 136.6 rainfall days, and 27.44" (697mm) of precipitation is accumulated.
Months with snowfall in Jacksonville, Missouri, are January through April, September through December.
January is the month with the most snowfall. Snow falls for 6.9 days and accumulates 3.7" (94mm) of snow.
Throughout the year, in Jacksonville, there are 21.5 snowfall days, and 10.94" (278mm) of snow is accumulated.
January has the least sunshine of the year in Jacksonville, with an average of 4.6h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Jacksonville, Missouri.
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.
With an average relative humidity of 80%, May is the most humid month in Jacksonville.
May is the month with the most rainfall in Jacksonville, Missouri. Rain falls for 17.3 days and accumulates 3.62" (92mm) of precipitation.
May through August are months without snowfall in Jacksonville, Missouri.
June has the longest days of the year in Jacksonville, with an average of 14h and 54min of daylight.
The months with the highest UV index in Jacksonville, Missouri, are June through August, with an average maximum UV index of 6.
July stands out as Jacksonville's warmest month, with temperatures ranging between an average high of 84.9°F (29.4°C) and a low of 67.5°F (19.7°C).
The month with the most sunshine in Jacksonville is July, with an average of 10.4h of sunshine.
The least humid month in Jacksonville is October, with an average relative humidity of 71%.
With an average of 9h and 24min of daylight, December has the shortest days of the year in Jacksonville.
Average temperature
Jacksonville, MO
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure
Jacksonville, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"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:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Jacksonville, MO
- Average wind speed in January:
10mph - Average wind speed in February:
10mph - Average wind speed in March:
10mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January, February and March (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity
Jacksonville, MO
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Jacksonville, MO
- Average rainfall in January:
1.18" - Average rainfall in February:
1.42" - Average rainfall in March:
2.36" - Average rainfall in April:
2.8" - Average rainfall in May:
3.62" - Average rainfall in June:
3.19"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Jacksonville, MO
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
6 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.2 days).
Average snowfall
Jacksonville, MO
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days
Jacksonville, MO
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.3 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Jacksonville, MO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 36min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Jacksonville, MO
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
14.6 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Jacksonville, MO
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
Jacksonville, MO
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Jacksonville, 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).
