Climate and monthly weather forecastKirkwood, MO
Climate and monthly weather forecast
The climate of Kirkwood
Located in the heart of Missouri, USA, Kirkwood experiences a predominantly Humid subtropical climate, denoted as Cfa as per the Köppen climate classification. Absence of a dry season characterizes this climatic zone. What this means for the residents and visitors of Kirkwood is the presence of a wide range of weather conditions throughout the year. From cooler temperatures in January hovering around 24.3°F (-4.3°C) to a warm 86.9°F (30.5°C) in the peak of July, the average temperature range post a significant fluctuation.When viewed at an annual level, the relative humidity is fairly consistent, averaging between 70% to 78%. Rainfall, however, displays a rise and fall pattern. Starting from 1.73" (44mm) in January, the rain intensifies to reach its highest point at 3.58" (91mm) in May, and then gradually reduces to almost starting levels towards the end of the year.
The fascinating feature about the precipitation in Kirkwood is not just its liquid form, as snow makes its appearance too. Snowfall, which is observed from December to March, peaks in February at 2.6" (66mm). However, snowfall amounts decline quickly to nothing from April onwards.
The best time to visit Kirkwood
Given the wide variety of weather conditions, the ideal time to visit Kirkwood hinges largely on the type of activities visitors seek. For sun-seekers who enjoy long daylight hours, June should be their choice, boasting the highest amount of sunshine at 10.5 hours, along with longer days that last 14.8 hours.Fans of milder climates might find April a suitable choice. Temperatures during this month typically range from 48°F (8.9°C) to 65.5°F (18.6°C). In addition to the comfortable temperatures, there is a marked reduction in snowfall possibility and the appearance of 8.6 hours of sunshine is also enticing.
The worst time to visit Kirkwood
Understandably, the worst time to visit will largely depend on visitor preferences. However, the colder months of January and February, with low temperatures of 24.3°F (-4.3°C) and 27.9°F (-2.3°C) respectively, combined with snowfall might not be ideally suited for travel and outdoor activities.Spring weather in Kirkwood
Observations from March to May indicate that spring in Kirkwood is a period of increasing warmth. March kicks off the spring season with a high of 54.3°F (12.4°C) that warms up to 74.8°F (23.8°C) in May. Sunshine hours also show an uptick from 6.5 hours in March to 9.5 hours by May, making spring an ideal time for outdoor activities. It should be noted though, that rain also increases during this season, culminating in May with a total of 3.58" (91mm).Summer weather in Kirkwood
Summers in Kirkwood display high temperatures, peaking at 86.9°F (30.5°C) in July. The period from June to August also experiences an increase in daylight hours, hovering around 14.8 hours. However, these months do see substantial amounts of rain, with all three months maintaining around 3.3" (84mm), ensuring that warm weather is accompanied by a healthy dose of rainfall.Autumn weather in Kirkwood
Autumn in Kirkwood, observed from September to November, evidences a gradual cooling of temperatures. From a high of 79.7°F (26.5°C) in September, the mercury dips to a comfortable 53.4°F (11.9°C) in November. Rainfall and relative humidity decrease during this period, making it an appealing time for outdoor indulgences.Winter weather in Kirkwood
Kirkwood winter, which spans December to February, sees a further drop in temperatures to a chilly low of 24.3°F (-4.3°C) in January. Snowfall in these months ranges from 2.24" (57mm) in December to 1.1" (28mm) in February. With daylight hours averaging from 10.1 hours in December to 9.8 in January, and a limited sunshine of less than 5 hours, winter becomes a period of shorter, colder days.Weather in January
Known for its chilly conditions, January in Kirkwood, Missouri, grapples with colder temperatures and notable snowfall. Compared to the proceeding month of December, January sees a slight dip in temperatures with its high and low, reaching only 37.8°F (3.2°C) and 24.3°F (-4.3°C) respectively. Weather in January »Weather in February
Despite the arrival of February, Kirkwood still encounters lingering winter weather, which is quite akin to January's pattern. Fractional increments in temperature and snowfall can be observed; the monthly high temperature approximates 42.3°F (5.7°C), and February witnesses a snowfall of around 2.6" (66mm). Weather in February »Weather in March
In March, Kirkwood slowly embraces spring, witnessing a substantial shift in its weather compared to the preceding winter months. Demonstrating the most noticeable transition, the temperature soars up to 54.3°F (12.4°C), accompanied by a significant decrease in snowfall. Weather in March »Weather in April
April in Kirkwood is synonymous with the vibrancy of full-blown spring. A noticeable shift from March can be felt, as temperatures further rise, and rainfall takes precedence over snowfall. Light showers grace the city frequently, with a monthly rainfall accumulation of around 3.31" (84mm). Weather in April »Weather in May
Transitioning from spring to summer, May in Kirkwood witnesses heightened temperatures and increased humidity. While the temperature and rainfall patterns extend from April, the temperatures steadily crawl toward their peak. Sporadic showers continue to be a part of the city's weather routine, providing relief from the heating conditions. Weather in May »Weather in June
June unfolds the peak summer months in Kirkwood, marked by soaring temperatures and abundant sunlight. The highest average temperature during the year is recorded in June, with the mercury reaching a significant 84.2°F (29°C). The city accommodates these higher temperatures with a marked increase in daylight hours, on par with the summer solstice. Weather in June »Weather in July
July continues the hot summer streak established by June in Kirkwood, Missouri. Although the temperatures and overall weather conditions seem quite similar to those observed in June, the average temperature marginally outpaces that of the preceding month. Weather in July »Weather in August
In August, the high summer temperatures persist, quite akin to the July conditions, making it a comparatively warmer month. Kirkwood residents spend their time enjoying outdoor activities, maximizing the benefits of the extended daylight hours. Weather in August »Weather in September
September transitions Kirkwood's weather from the intense heat of summer towards milder fall conditions. Compared to August, the temperatures experience a definitive descent, though still maintaining a moderately warm atmosphere. Weather in September »Weather in October
October brings about a true fall essence in Kirkwood, Missouri. Pleasantly cool temperatures are witnessed as compared to the preceding month of September. The transition from the warmth of summer to the crispness of fall is fully experienced during October. Weather in October »Weather in November
November, the last month of the autumn in Kirkwood, is also a fresh month, with an average temperature fluctuating between 53.4°F (11.9°C) and 38.1°F (3.4°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a refreshing 66.4°F (19.1°C) in October to a cool 53.4°F (11.9°C). Weather in November »Weather in December
December in Kirkwood signifies the onset of winter, with a significant drop in temperatures compared to November. The month endures colder days with decreased hours of sunshine, aligning with the winter solstice. Snowfall makes a reappearance, blanketing the city in winter's charm and making up an essential part of a Kirkwood's winter scenery. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Kirkwood, MO
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Kirkwood, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"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:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"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
Kirkwood, MO
- Average wind speed in January:
9.2mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.4mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Kirkwood, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Kirkwood, MO
- Average rainfall in January:
1.73" - Average rainfall in February:
1.69" - Average rainfall in March:
2.36" - Average rainfall in April:
3.31" - Average rainfall in May:
3.58" - Average rainfall in June:
3.5"
- Average rainfall in July:
3.19" - Average rainfall in August:
3.31" - Average rainfall in September:
1.97" - Average rainfall in October:
2.17" - Average rainfall in November:
1.73" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days
Kirkwood, MO
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
7.6 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
12 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).
Average snowfall
Kirkwood, MO
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Kirkwood, MO
- Average snowfall days in January:
4.7 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
1.9 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1 days - Average snowfall days in December:
3.1 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Kirkwood, 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 36min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Kirkwood, MO
- Average sunshine days in January:
21 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.9 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).
Average UV index
Kirkwood, 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 and December (UV index 2).
Average cloud cover
Kirkwood, MO
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Kirkwood, 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).





