Climate and monthly weather forecastLee's Summit, MO

Climate and monthly weather forecast
The climate of Lee's Summit
Lee's Summit, located in Missouri, USA, associates with a Köppen climate classification of Cfa. This classification identifies the region's predominant climate as humid subtropical, with no marked dry season. The weather array for Lee's Summit fluctuates greatly throughout the year due to changes in sunlight hours, temperature, wind speed, and precipitation.Examination of the city's climatological parameters reveals distinct seasonal temperature trends. The highest average temperatures are typically seen in July, reaching up to 86.5°F (30.3°C), while the lowest averages occur in January, diving down to 23.2°F (-4.9°C). Humidity also varies throughout the year, reaching its peak in May and staying relatively high until late October. The town also experiences shifts in rainfall throughout the year. Extremely wet months, such as May, witness up to 4.29" (109mm) of rainfall, while drier months like January experience as little as 0.98" (25mm).
Lee's Summit is noteworthy for its unique weather patterns. The most notable is the significant decrease in cloud cover during the summer months, creating bright, vivid days. Coupled with increased hours of daylight - from 9.8 hours in January to a high of 14.9 hours in June - these conditions engender prime weather for sunny summer activities.
The best time to visit Lee's Summit
For those seeking sunny skies and warm temperatures, the best time to visit Lee's Summit is during the summer, particularly between June and August. During these months, the weather is pleasantly warm, ranging between 72.7°F (22.6°C) and 86.5°F (30.3°C). Additionally, relative humidity is moderately lower than other months and cloud cover is less frequent. This suggests extensive sunshine hours, with a high level of visibility.The worst time to visit Lee's Summit
Given the climatic conditions, the least favorable time to visit Lee's Summit appears between December and February when temperatures dip considerably low, ranging from a maximum of 41.2°F (5.1°C) to a minimum of 23.2°F (-4.9°C). Snowfall during this period is relatively high, recording up to 2.83" (72mm) in February. Strong gusts of wind and the shortest daylight hours of the year also add to the harshness of the winter months.Spring weather in Lee's Summit
Spring in Lee's Summit starts in March, characterized by a gradual rise in temperatures, from 54.1°F (12.3°C) to 64°F (17.8°C) in April. Rainfall starts to increase significantly during this period, reaching 2.91" (74mm) by April. Daylight hours also begin to extend, offering up to 13.3 hours of sunlight by the end of spring. Despite the wind speed remaining constant around 9.9mph (15.9km/h), the visibility remains excellent throughout spring at a constant 6 miles.Summer weather in Lee's Summit
Summer in Lee's Summit features high temperatures, varying from 72.7°F (22.6°C) in May to a peak of 86.5°F (30.3°C) in July. The seasons’ distinguishing features are its increased hours of daylight - peaking at 14.9 hours in June - and the reduced cloud cover. Rainfall during this period stays consistent, hovering between 3.07" (78mm) and 4.29" (109mm). Wind speeds fall to their lowest in the year at 6.5mph (10.5km/h) and 6.4mph (10.3km/h) in July and August, respectively.Autumn weather in Lee's Summit
Autumn in Lee's Summit boasts of moderately cooler temperatures, which range from 78.3°F (25.7°C) in September to 52.7°F (11.5°C) in November. The daylight hours shorten to about 10.1 hours by November, and rainfall figures fall to 1.38" (35mm). Although the wind speed picks up during this period, reaching 9.5mph (15.3km/h) in November, the visibility remains at a steady 6 miles.Winter weather in Lee's Summit
Winter in Lee’s Summit starts in December and is characteristically cold with temperatures fluctuating between 41.2°F (5.1°C) and 23.2°F (-4.9°C) from December to February. Notably, rainfall reaches its lowest in the year, with December recording the least at 1.61" (41mm). Snowfall mounts during winter, with February witnessing the highest snowfall in the year at 2.83" (72mm). The shortest daylight of the year is observed in December - 9.5 hours, contributing to the cooler weather conditions.Weather in January
January experiences a shift from the bone-chilling cold of December to somewhat milder conditions. It is still a true winter month marked by lower temperatures and the occasional snow flurry. A notable average low temperature of 23.2°F (-4.9°C) is recorded, making it one of the coldest months. Weather in January »Weather in February
While February shows a slight increase in temperature compared to January, it is still dominated by winter weather patterns. Though the frosty temperatures persist, there is a noticeable leap in daylight hours, and more sunshine is observed. Weather in February »Weather in March
March ushers in the transition from winter to spring, with signs of warmer weather starting to emerge. Lee's Summit experiences increased hours of sunshine and rising temperatures, indicating the advent of spring. Some days may have a wintry feel with average low temperatures hitting 37.9°F (3.3°C), but a visible reduction in snowfall marks the beginning of the end of winter. Weather in March »Weather in April
April marks a definitive shift into spring in Lee's Summit. With a noticeable increase in temperature, the frosty breath of winter finally withdraws. Sunshine levels rise, leading to brighter, more pleasant days and the snow finally disappears, leaving behind a fresh spring canvas. Weather in April »Weather in May
May is when truly warm weather begins to settle in Lee's Summit. Temperatures, daylight hours and sunshine levels continue on the upward trend initiated in April. Rainfall too, remains consistent, contributing to the lush green canvas the region transforms into. Weather in May »Weather in June
June sees the onset of summer in Lee's Summit, with temperatures continuing to climb. Daylight hours reach their peak, stretching out the warm sunny days. Despite the climb in temperature, this month sees a dip in rainfall occurrence compared to May. Weather in June »Weather in July
July is the height of summer for Lee's Summit, with July’s temperatures reaching their zenith at an average high of 86.5°F (30.3°C). This month generally has the hottest days, making outdoor activities a perfect choice for sunny afternoons. Weather in July »Weather in August
August weather in Lee's Summit sees a slight cooldown from July's peak, though it remains within the core of summer. Daylight hours begin to truncate, signaling the slow approach of autumn. While it continues to be humid, with temperatures remaining high, rainfall remains fairly consistent. Weather in August »Weather in September
September marks the transition from summer to fall in Lee's Summit, with a noticeable drop in temperature. Decreasing daylight hours means fewer sunlit moments than the height of summer. However, the ample warmth still present makes this month a perfect time to explore the outdoors. Weather in September »Weather in October
October fully ushers in autumn in Lee's Summit, with striking foliage painting the city in lively hues. A further drop in temperature signifies a cool down from the preceding hotter months. Despite the shorter days, the weather remains pleasant with cooler temperatures setting the mood for outdoor excursions. Weather in October »Weather in November
November showcases a significant drop in temperature as Lee's Summit starts to gear up for winter. The robust fall foliage gradually starts to thin out and overcast skies become a regular feature. Snow makes its first appearance of the year, though in small amounts with a snowfall of 0.35 inch seen on average. Weather in November »Weather in December
December rolls in with wintery gusto, introducing the beginning of the cold season in Lee's Summit. The dwindling daylight hours coupled with shorter sunny intervals paint a captivating wintry landscape. Despite being the onset of cold weather, it experiences less snowfall than January and February with an average snowfall of 0.94 inch. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Lee's Summit, MO
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure
Lee's Summit, MO
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Lee's Summit, MO
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.5mph - 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:
9.5mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Lee's Summit, MO
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Lee's Summit, MO
- Average rainfall in January:
0.98" - Average rainfall in February:
1.14" - Average rainfall in March:
2.36" - Average rainfall in April:
2.91" - Average rainfall in May:
4.29" - Average rainfall in June:
3.11"
- Average rainfall in July:
3.46" - Average rainfall in August:
3.07" - Average rainfall in September:
2.72" - Average rainfall in October:
2.48" - Average rainfall in November:
1.38" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days
Lee's Summit, MO
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
12.5 days - Average rainfall days in April:
14 days - Average rainfall days in May:
17 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (5.6 days).
Average snowfall
Lee's Summit, MO
- Average snowfall in January:
2.24" - Average snowfall in February:
2.83" - Average snowfall in March:
0.91" - Average snowfall in April:
0.16" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Lee's Summit, MO
- Average snowfall days in January:
5.9 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
2.4 days - Average snowfall days in April:
0.4 days - Average snowfall days in May:
0.2 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:
0.4 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.3 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Lee's Summit, 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 54min
- Average daylight in July:
14h and 36min - 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 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 24min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days
Lee's Summit, MO
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.1 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is December (22.2 days).
The month with the least sunshine days is June (11.8 days).
Average UV index
Lee's Summit, MO
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, February, November and December (UV index 2).
Average cloud cover
Lee's Summit, MO
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Lee's Summit, 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).





