Climate and monthly weather forecastJefferson City, MO
Climate and monthly weather forecast
The climate of Jefferson City
Jefferson City, located in the heart of Missouri, USA, is characterized by a Humid subtropical climate without a dry season, otherwise known as the Köppen climate classification Cfa. This climate classification implies that the city receives an ample amount of rainfall throughout the year with hot and humid summers and mild to cool winters.Average high temperatures in the city fluctuate from 38.5°F (3.6°C) during the coldest month, January, to a peak of 89.2°F (31.8°C) in July. Simultaneously, average low temperatures range from 24.3°F (-4.3°C) in January to 67.8°F (19.9°C) in July. Humidity remains relatively uniform throughout the year, standing at about 75% during the beginning and end of the year and slightly lowering to 73% in August.
Rainfall in this Humid subtropical climate varies with the seasons; in Jefferson City, maximum rainfall, reaching 1.3" (33mm), occurs in May. The levels then decrease gradually through the summer and autumn, with the lowest rainfall, 0.47" (12mm), recorded in November. Similarly, the most rainy days are in May, with an average of 11.3 days, while it rains the least in December with just 4.6 days.
Unique weather patterns in Jefferson City include snowfall, which is experienced during the cold seasons. However, it is mostly limited to the beginning of the year, with the highest amount recorded in January, about 0.71" (18mm), and then it completely dies out from April to October.
The best time to visit Jefferson City
The best time to visit Jefferson City would be between May and September. These months offer the ideal combination of high temperatures ranging from 75.7°F (24.3°C) in May to 86.4°F (30.2°C) in June, decreasing gradually towards September, and moderate rainfall. With an average of about 1.06" (27mm) of rain in April to a reduction to 0.55" (14mm) in September, it provides an ample outdoor time. The high temperatures and moderate showers create the perfect lovable weather. Moreover, daylight lasts for an average of 14.3 hours in May and dwindles down to 12.4 hours by September, providing more than enough time for exploration.The worst time to visit Jefferson City
Temperature dips and increased snowfall mark the tough climatic conditions making January an unfavorable time to visit Jefferson City. Temperatures plummet to an average high of just 38.5°F (3.6°C) and an even lower 24.3°F (-4.3°C). Coupled with around 0.71" (18mm) snowfall, it can be quite a tough time for travelers not accustomed to frigid conditions.Spring weather in Jefferson City
Spring, marked by the months from March through May, is characterized by a steady rise in temperatures in Jefferson City. The temperatures rise from a high of 55.2°F (12.9°C) to 75.7°F (24.3°C) and a low of 37.4°F (3°C) to 55.8°F (13.2°C). This period witnesses a steep increase in rainfall from 0.63" (16mm) in March to 1.3" (33mm) in May.Summer weather in Jefferson City
By June, summer settles in Jefferson City, lasting until August. Daytime temperatures during these months can rise above 86.4°F (30.2°C), making it the warmest time of the year. Nonetheless, temperatures during the night are comfortable, ranging from 65.5°F (18.6°C) to 67.8°F (19.9°C). Rainfall is lower than in spring, with an average of 1.26" (32mm) falling in June and decreasing to 0.87" (22mm) by August.Autumn weather in Jefferson City
Autumn, from September to November, is marked by a gentle decrease in temperature and moderate rainfall. The transition from summer to winter is smooth, with the average highs ranging from 80.1°F (26.7°C) in September to 53.8°F (12.1°C) in November, and lows between 59.2°F (15.1°C) and 37°F (2.8°C). While rainfall reduces to 0.47" (12mm) in November, the least rainy month.Winter weather in Jefferson City
December marks the onset of winter in Jefferson City, and it continues until February. Average high temperatures range between 42.8°F (6°C) to 38.5°F (3.6°C) and lows from 24.3°F (-4.3°C) to 29.1°F (-1.6°C). The first two winter months record snow, peaking at 0.71" (18mm) in January. By February, as the winter recedes, snowfall reduces to 0.67" (17mm) as the cycle starts anew.Weather in January
Jefferon City enters the New Year with a decidedly mild winter feel. The lowest temperature touches upon 24.3°F (-4.3°C), standing as a testament to the climatic swings. There's something serene about the frequency of snowfall days, making it the city's third snowiest month with an average of five days. Weather in January »Weather in February
The scenery metamorphoses slightly as February steps in with an upward shift in temperatures. Stepping up from the chill of January, February cradles the average temperature to rise between 24.3°F (-4.3°C) to 43°F (6.1°C). Weather in February »Weather in March
Weather transitions become more noticeable as March takes command. The scent of spring begins to permeate the air, with the chill of the winters making a graceful exit. Rainfall gathers momentum, and the snowy days decline to a mere average of one day in the face of oncoming spring. Weather in March »Weather in April
April struts in audaciously, sending the remnants of winter into oblivion. Clearer days start making appearances, painting the cityscape against the backdrop of an azure sky. A notable observation for this month is the sudden surge of rainfall from 0.63" (16mm) in March to 1.06" (27mm). Weather in April »Weather in May
May sweeps Jefferson City into a warmer atmosphere. The hues acquire a vibrancy as May graces the horizons with temperate weather conditions. A slight uptick in humidity signals the eventual onset of summer. Jefferson City basks under an impressive stretch of daylight crossing 14 hours. Weather in May »Weather in June
June brings about a buzz, with temperatures tending towards the higher end. The city celebrates summer with an expected temperature swing reaching up to 86.4°F (30.2°C). The charm of the long, warm days continues with more than 14 hours of daylight. Weather in June »Weather in July
July introduces itself as the zenith of the summer, drawing out the highest mercury levels. The temperature peaks to an impressive high of 89.2°F (31.8°C), marking it as the hottest month of the year. The sun dominates the skies with an extensive presence spanning over 14 hours of daylight. Weather in July »Weather in August
August softly heralds the retreat of the peak summer conditions. The city breathes a sigh of relief as temperatures begin to descend, yet maintaining a pleasant summery vibe. Fewer daylight hours indicate a tangible transition towards autumn. Weather in August »Weather in September
September whispers the enchanting tales of autumn into the Jefferson City canvas. The weather carries a whiff of a blend - the remnants of summer with the hints of oncoming fall. Favorable weather conditions present themselves with average temperatures going down to 59.2°F (15.1°C) from 65.8°F (18.8°C) in August. Weather in September »Weather in October
October presents Jefferson City with the heart of the autumn. Days become significantly shorter, while nights grow longer. The city blossoms with a riot of colors as the leaves take on a variety of hues. Notable shifts in temperature become noticeable with the arrival of October's autumn chill. Weather in October »Weather in November
November carries forward the autumnal legacy, tumbling new leaves onto the city's paths. A remarkable temperature dip becomes more perceptible. The rainfall moderately recedes, matched with a slight increase in relative humidity levels. Weather in November »Weather in December
December encapsulates the end of the climatic cycle, welcoming back the gentle caress of the winter chill. The onset of the white frost is accompanied by an increase in cloudy and snowfall frequency. Jefferson City undergoes a metamorphosis, with temperature stooping as low as 29.1°F (-1.6°C) compared to the year's rest period. 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
The coldest period is January, when temperatures fluctuate between an average high of 38.5°F (3.6°C) and a low of 24.3°F (-4.3°C).
Throughout the year, in Jefferson City, Missouri, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
The month with the most snowfall in Jefferson City is January, when snow falls for 5.2 days and typically aggregates up to 0.71" (18mm) of snow.
Throughout the year, in Jefferson City, Missouri, there are 14.9 snowfall days, and 2.13" (54mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Jefferson City.
The month with the least sunshine in Jefferson City is February, with an average of 4.8h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jefferson City, Missouri, 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.
April through October are months without snowfall.
May is the most humid month, with an average relative humidity of 77%.
May is the month with the most rainfall in Jefferson City, Missouri. Rain falls for 11.3 days and accumulates 1.3" (33mm) of precipitation.
With an average of 14h and 48min of daylight, June has the longest days of the year in Jefferson City.
The month with the most sunshine is June, with an average of 10.6h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, with its high-temperature average of 89.2°F (31.8°C) and a low-temperature average of 67.8°F (19.9°C), is the warmest month in Jefferson City.
The least humid month is October, with an average relative humidity of 72%.
November is the month with the least rainfall. Rain falls for 6.4 days and accumulates 0.47" (12mm) of precipitation.
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Jefferson City, 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 (38.5°F).
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Jefferson City, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"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:
30.02"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 (29.92"Hg).
Average wind speed
Jefferson City, MO
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.6mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Jefferson City, MO
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Jefferson City, MO
- Average rainfall in January:
0.51" - Average rainfall in February:
0.51" - Average rainfall in March:
0.63" - Average rainfall in April:
1.06" - Average rainfall in May:
1.3" - Average rainfall in June:
1.26"
- Average rainfall in July:
0.87" - Average rainfall in August:
0.87" - Average rainfall in September:
0.55" - Average rainfall in October:
0.75" - Average rainfall in November:
0.47" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days
Jefferson City, MO
- Average rainfall days in January:
4 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
11 days - Average rainfall days in May:
11.3 days - Average rainfall days in June:
10.4 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
8.6 days - Average rainfall days in September:
7 days - Average rainfall days in October:
6.8 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).
Average snowfall
Jefferson City, MO
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Jefferson City, MO
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.1 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:
0.7 days - Average snowfall days in December:
2.8 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Jefferson City, MO
- 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 54min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Jefferson City, MO
- Average sunshine days in January:
24.3 days - Average sunshine days in February:
19.3 days - Average sunshine days in March:
20.5 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
17.6 days
- Average sunshine days in July:
17.7 days - Average sunshine days in August:
19.8 days - Average sunshine days in September:
20.7 days - Average sunshine days in October:
22.4 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
23.7 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).
Average UV index
Jefferson City, 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
Jefferson City, MO
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility
Jefferson City, 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).
