Climate and monthly weather forecastLeavenworth, KS
Climate and monthly weather forecast
The climate of Leavenworth
Leavenworth, Kansas, is predominantly categorized within the Köppen climate classification as Cfa, which means a humid subtropical climate with no dry season. Geographically, this area lies in the northeastern part of Kansas, situated along the West Bank of the Missouri River which affects its humidity levels.This city sees significant variations in temperature throughout the year, fluctuating between a chilly 21.9°F (-5.6°C) in the colder months to a warm 86.4°F (30.2°C) during the summer. Notably, the mercury consistently rises from March, peaking in July with the highest average high temperature and average low temperature at 86.4°F (30.2°C) and 68.4°F (20.2°C) respectively, before gradually dipping again towards the end of the year.
Excitingly, Leavenworth experiences rainfall every month, with the heaviest downpours occurring between May to July where accumulation ranges from 2.68" (68mm) to 3.94" (100mm). Snowfall is a common phenomenon in the colder months, from December to February, with the highest accumulation in February at 2.32" (59mm). Among the weather elements, wind speeds remain fairly constant throughout the year, ranging between 6.5mph (10.5km/h) to 9.9mph (15.9km/h), with maximum gust speeds of 10.6 to 15.5mph (24.9km/h).
The best time to visit Leavenworth
Visitors seeking pleasant weather would find the period from May to September most welcoming. During this time, average high temperatures range from 72.9°F (22.7°C) to 84.6°F (29.2°C), providing ample warmth for outdoor activities. Furthermore, daylight hours are at their longest, reaching up to 14.9 hours in June and July, and sunshine hours peak at 10.5 hours in July, enhancing the likelihood of experiencing bright, clear days.The worst time to visit Leavenworth
Travellers may find the period from November to February less favorable for a visit. In this time, temperatures reach their lowest, bottoming at 21.9°F (-5.6°C) in January, and daylight hours slip to their shortest duration with 9.5 hours in December. Additionally, snowfall occurs frequently during this period with February recording the highest accumulation of 2.32" (59mm). Visibility, however, maintains a steady 6 miles throughout the year.Spring weather in Leavenworth
Spring in Leavenworth, from March till May, displays a significant rise in temperatures, with average highs surging from 53.6°F (12°C) in March up to 72.9°F (22.7°C) in May. April sees the highest rainfall for this season with 2.64" (67mm), considerably more than March and May. Wind speeds during this time are relatively calm, fluctuating marginally between 8.2mph (13.2km/h) in May and 9.9mph (15.9km/h) in March.Summer weather in Leavenworth
Summers in Leavenworth, lasting from June to August, are notably warm with average high temperatures reaching up to 86.4°F (30.2°C) in July. Rainfall during this season remains considerably high, with June seeing 3.15" (80mm) of precipitation. Moreover, daylight hours peak at 14.9 hours in June and July, complemented by maximum sunshine hours of 10.5 in July.Autumn weather in Leavenworth
Autumn span from September to November in Leavenworth, shows a gradual decrease in temperatures, with average highs reducing from 77.9°F (25.5°C) in September to 52.2°F (11.2°C) in November. September experiences the highest rainfall in this season with 2.52" (64mm). Sunshine hours, however, maintain a healthy range between 9.3 hours to 5.8 hours during these transitioning months.Winter weather in Leavenworth
Winter in Leavenworth, setting in from December to February, is characterized by its icy temperatures, plummeting to 21.9°F (-5.6°C) in January. This cold season also witnesses snow, reaching a peak of 2.32" (59mm) in February. This period also sees the shortest daylight hours, from 9.5 hours in December to 10.7 hours by February, and chilly wind speeds averaging around 9.3mph (15km/h) to 9.9mph (15.9km/h), contributing to a frosty winter atmosphere.Weather in January
Leavenworth, Kansas opens its calendar year under the strong hold of winter, whereby the weather characterizes a typical cold Midwest winter. The temperatures continue their descent from December, solidifying January's position as the chilliest month of the year. Weather in January »Weather in February
Leavenworth transitions into February with slightly milder weather as compared to its preceding month. Gradual improvements in the thermal profile of the city commence herein with the average high temperatures reaching up to 40.1°F (4.5°C). Weather in February »Weather in March
As Leavenworth, Kansas moves into March, a change in season becomes palpable. Average low temperatures transition from below freezing points and ascend to a more tolerable 36.5°F (2.5°C). The frequency of snowfall decreases significantly compared to previous months, marking a descent into spring. Weather in March »Weather in April
By April, the city of Leavenworth, Kansas is well into the spring groove. Inclement weather, noted by a slight increase in average high temperatures, matches perfectly with the bloom of April's famous flora and fauna. Rainfall intensifies to an average of 2.64" (67mm), yet snowfall becomes almost negligible with only 0.08" (2mm) recorded. Weather in April »Weather in May
May ushers in the warmth in Leavenworth, with the city experiencing a noticeable upsurge in temperature. Seasonal variations align the climate more towards the cusp of summer without entirely abandoning the traits of spring. The level of rainfall reaches its peak, noting a substantial 3.94" (100mm). Weather in May »Weather in June
June in Leavenworth, Kansas announces the onset of summer with longer days and warmer temperatures. Consistent with typical Midwestern summer, the city experiences maximum temperatures of 83.5°F (28.6°C), narrating a distinctive shift in seasonal conditions. Weather in June »Weather in July
July in Leavenworth boasts maximum temperatures, peaking to an average of 86.4°F (30.2°C). It further emphasizes the hold of summer over the city. The presence of high temperatures gives insight into July being the hottest month of the city's climatic chart. Weather in July »Weather in August
In August, the climate conditions of Leavenworth, Kansas see a slight dip in temperature values from July. It positions August within the transitional phase between the stifling summer heat and the forthcoming mild fall temperatures. Weather in August »Weather in September
September marks the commencement of fall in Leavenworth. Autumn renders a gradual yet noticeable drop in temperature, resonating well with the crisp fall mornings. The middle-of-the-road weather paves the way for comfortable outdoor activities, making it a preference for many. Weather in September »Weather in October
Leavenworth, Kansas greets October with a more pronounced arrival of fall. The minimal influence of summer becomes apparent as October adopts cooler temperatures and crisp mornings. Seasonality takes a marked shift from the sun-drenched summer months towards the colder end of the year. Weather in October »Weather in November
As November rolls in, Leavenworth, Kansas gears up to welcome the winter once again. The transformation is marked by a significant decrease in temperatures from the preceding month. Average highs drop to around 52.2°F (11.2°C), recounting a typical climatic trait of Midwestern late-autumn. Weather in November »Weather in December
December in Leavenworth marks full swing into winter, with the city observing its first substantial snowfalls of the season. The precipitation transition from rain to snow is notable, complementing the holiday season's festivities. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Leavenworth, KS
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Leavenworth, KS
- 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:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.01"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 (29.88"Hg).
Average wind speed
Leavenworth, KS
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity
Leavenworth, KS
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Leavenworth, KS
- Average rainfall in January:
0.91" - Average rainfall in February:
0.87" - Average rainfall in March:
1.97" - Average rainfall in April:
2.64" - Average rainfall in May:
3.94" - Average rainfall in June:
3.15"
- Average rainfall in July:
3.27" - Average rainfall in August:
2.68" - Average rainfall in September:
2.52" - Average rainfall in October:
2.24" - Average rainfall in November:
1.14" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days
Leavenworth, KS
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Leavenworth, KS
- Average snowfall in January:
2.09" - Average snowfall in February:
2.32" - Average snowfall in March:
0.75" - Average snowfall in April:
0.08" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Leavenworth, KS
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.1 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Leavenworth, KS
- 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 12min - Average daylight in November:
10h and 0min - 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 12min - Average sunshine in February:
5h and 36min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days
Leavenworth, KS
- Average sunshine days in January:
22 days - Average sunshine days in February:
18.6 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Leavenworth, KS
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
Leavenworth, KS
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Leavenworth, KS
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).





