The climate of Chesterfield
Chesterfield,
Missouri, United States, experiences a predominate Humid subtropical climate devoid of a dry season, evident by the Köppen climate classification "Cfa". The town is subject to a myriad of different weather conditions affected by geographical position and time of the year.
Throughout the year, the weather parameters exhibit considerable variations. High temperatures range from as low as 37.8°F (3.2°C) in the winter months to a sweltering 87.4°F (30.8°C) in the summer. At the same time, lows vary from a chill 24.1°F (-4.4°C) to a mild 68.5°F (20.3°C). The region's relative humidity levels remain constant, staying within a narrow band, ranging from a low of 71% to a peak of 78%.
Chesterfield experiences rainfall throughout the year, with accumulations ranging from 0.04" (1mm) in the drier months of
February to a high of 0.12" (3mm), usually in
May. Interestingly, the number of rainy days per month increases from February's 6.9 days to reach a peak of 16.3 days in May and then drops consistently, reaching its lowest level of 7.2 days in
December. Snowfall occurs mostly between the months of
January and
March, and again in December. However, the amount of snow is less than 1.69" (43mm) even during these months.
The best time to visit Chesterfield
June to
August marks the best time to visit
Chesterfield,
Missouri. These months bring about the highest average temperatures, reaching up to 87.4°F (30.8°C), and relative humidity levels are at a comfortable range of 76% to 78%. Additionally, the sunshine hours are at their peak, averaging 10.5 hours per day. Consequently, these conditions provide the ideal weather for outdoor activities and sightseeing, ensuring visitors have the best experience.
The worst time to visit Chesterfield
Winter months, notably
January and
February, are considered the least ideal time for a leisure trip to
Chesterfield. During these months, temperatures fluctuate between a chilly 24.1°F (-4.4°C) and a high of 42.4°F (5.8°C). Additionally, these months witness the highest levels of snowfall of the year between 1.42" (36mm) to 1.69" (43mm). These weather conditions can pose challenges for outdoor activities and travel logistics, hence making these months unfavorable for a visit.
Spring weather in Chesterfield
Spring in
Chesterfield spans from
March to
May, featuring a gradual rise in temperature, which goes up from 54.7°F (12.6°C) to 75°F (23.9°C) by May. The period also sees consistent rainfall between 0.08" (2mm) to 0.12" (3mm) per month, and an increase in the number of rainy days from 13.1 in March to 16.3 in May. Even with the moisture, springtime brings more sunlight, escalating from twelve hours per day in March to an impressive fourteen hours in May.
Summer weather in Chesterfield
The summer months from
June through
August provide
Chesterfield with its warmest weather conditions, with average highs from 84.4°F (29.1°C) to 87.4°F (30.8°C). Alongside heat, these months also experience their share of rainfall, averaging slightly below 0.12" (3mm). Nevertheless, the region enjoys its longest daylight hours, exceeding fourteen hours per day, ensuring ample opportunity for outdoor activities.
Autumn weather in Chesterfield
Autumn in
Chesterfield, occurring between
September and
November, reveals a steady decline in temperature from 79.7°F (26.5°C) to a cool 53.6°F (12°C) in November. Rainfall is moderate, ranging from 0.08" (2mm) to 0.08" (2mm), as the number of rainy days gently declines from 12 to 8.4 days. With average daylight hours lasting between ten to twelve hours, Autumn provides a scenic view of falling leaves under relatively clear skies.
Winter weather in Chesterfield
The winter months from
December to
February in
Chesterfield are characterized by cold temperatures, with averages fluctuating between 24.1°F (-4.4°C) to 42.4°F (5.8°C). These months also witness sporadic snowfall, ranging from 0.28" (7mm) to 1.42" (36mm), creating a chilly atmosphere fit for winter lovers and skiing enthusiasts. However, daylight hours are at the shortest with 9.5 hours in December, indicating long, cold winter nights.
Weather in January
Winter sets a chilly stage for the start of the year in
Chesterfield,
Missouri. The grey cloud cover is reluctant to fade, often blanketing the city with around 49% coverage, and bringing an average snowfall of 1.42" (36mm). This month is also notable for its limited amount of daylight, estimated at around 9.8 hours per day.
Weather in January »Weather in February
Following
January,
February continues the winter narrative, although signs of change start to appear. The month experiences an increase in daylight to approximately 10.8 hours, and the average high temperature inches up a little.
Weather in February »Weather in March
With the arrival of
March, the icy grip of winter starts to loosen on
Chesterfield. As the city bids farewell to snow, rainfall registers a remarkable increase from 1.3" (33mm) in
February to 1.85" (47mm) in March. Longer hours of daylight and the mild temperature offer a pleasant welcome to spring.
Weather in March »
Weather in April
In
April,
Chesterfield fully leaps into spring. The warming trend accelerates with the average high temperature climbing from 54.7°F (12.6°C) in
March to 65.8°F (18.8°C) in April. The city receives more plentiful sunshine, and the frequency and volume of rainfall increase, nurturing the growth of new vegetation.
Weather in April »Weather in May
May is the gateway to the much-awaited arrival of summer in
Chesterfield. The city looks more green and fecund with the increased humidity from 75% in
April to 78% in May. The inhabitants readily exchange their spring clothing for lighter summer wear.
Weather in May » Weather in June
June marks the full bloom of summer in
Chesterfield and is characterized by longer days and a significant rise in temperature. The UV index hits the annual peak of 7, emphasizing the intensity of the June sun. The city gears up for sumptuous barbecues, delightful picnics, and enriching hikes.
Weather in June »
Weather in July
The height of summer hits its stride in
July with
Chesterfield experiencing the highest average temperature of 87.4°F (30.8°C). The weather compels locals and visitors alike to seek relief in the city's pools and nearby water bodies.
Weather in July »Weather in August
After the peak of
July,
August continues to carry forward the chorus of summer, albeit with slightly less intensity. It remains primarily hot in the city with a temperature transition from the high of July to a slightly milder 86.2°F (30.1°C).
Weather in August »Weather in September
As
September rolls in, the weather in
Chesterfield undergoes a considerable transformation. The city delegates itself to the arrival of autumn, with the temperature falling from a high of 86.2°F (30.1°C) in
August to 79.7°F (26.5°C) in September.
Weather in September »
Weather in October
October brings a distinct feel of autumn to
Chesterfield as the cooler weather gradually sets in. The city displays a dramatic drop in temperature, transitioning from a high of 79.7°F (26.5°C) in
September to 66.4°F (19.1°C) in October.
Weather in October » Weather in November
November steers
Chesterfield towards the colder times as winter starts edging in. The onset of the holiday season combines with the dropping temperature which lowers to an average high of 53.6°F (12°C). The fall of red and yellow leaves paves the way for barren trees, indicating the nearing end of autumn.
Weather in November » Weather in December
Winter returns to
Chesterfield in
December, transforming the cityscape into a colder, quieter place. Snowfall makes a comeback after months of absence, with an average of 1.06" (27mm) falling. The chill in the air, combined with the festive décor adorning houses and shops, adds to the holiday spirit.
Weather in December »