Climate and monthly weather forecastWebster Groves, MO
Climate and monthly weather forecast
The climate of Webster Groves
Climatologists categorize the climate of Webster Groves, Missouri, under the Köppen climate classification as Cfa, commonly known as a humid subtropical climate. Webster Groves is geographically located in the midwestern United States and experiences no dry season throughout the year.Analyzing the monthly temperature averages reveals that the city undergoes warm to hot summers and mild to cool winters. The maximum temperatures in Webster Groves range from 37.8°F (3.2°C) in January to 86.9°F (30.5°C) in July, while the minimum temperatures fluctuate between 24.3°F (-4.3°C) in January and 69.1°F (20.6°C) in July. Hence, the weather can be quite diverse, covering a broad spectrum of temperature conditions.
Attention is drawn to the significant humidity levels in Webster Groves that stay consistently in the mid-'70s percentages throughout the year. Webster Groves also experiences fairly regular rainfall, with the driest month reporting 1.69" (43mm) of rain in February, to the wettest month, which is May, receiving 3.58" (91mm) of rain. Most notably, the city experiences snowfall only in January, February, and December, with February receiving the most at 2.6" (66mm).
Concerning sunlight, Webster Groves enjoys longest daylight in June with around 14.8 hours per day. However, the city experiences the most hours of sunshine in June and July with an average of 10.5 hours daily.
The best time to visit Webster Groves
The best time to visit Webster Groves could arguably be between May to September when the weather is warm and perfect for sightseeing and outdoor activities. During this period, average daily temperatures fluctuate between 74.8°F (23.8°C) and 86.9°F (30.5°C) making it the warmest and most pleasant season. Sunshine hours are also at their peak during these months, providing ample opportunities to enjoy the attractions and natural beauty of the city during daylight. Adding to the charm, rainfall during these months is moderate and evenly spread, unlikely to disrupt any tourist activities.The worst time to visit Webster Groves
The least favorable time to visit Webster Groves is perhaps in the cold months of December to February when the temperature is low, and the city experiences its only snowfall of the year. Average daily temperatures during this period drop from 37.8°F (3.2°C) to 42.6°F (5.9°C). Furthermore, the sunlight hours dwindle to their lowest annually, giving broader window to chills rather than the daylight joys.Spring weather in Webster Groves
In Webster Groves, spring is a season of transition. The weather in March starts off cool with average high temperatures at 54.3°F (12.4°C) and lows at 38.1°F (3.4°C). However, by May, temperatures have risen significantly to a high average of 74.8°F (23.8°C) and a low average of 57.7°F (14.3°C). Rainfall increases during this period, with May experiencing the highest rainfall of 3.58" (91mm).Summer weather in Webster Groves
The city’s summer, from June to August, is characterized by high temperatures averaging from 84.2°F (29°C) to 86.9°F (30.5°C). During this period, the minimum temperature varies between 67.1°F (19.5°C) and 69.1°F (20.6°C). Precipitation fluctuates between a range of 3.19" (81mm) to 3.5" (89mm), making Webster Groves environment humid yet warm.Autumn weather in Webster Groves
Autumn, from September to November, witnesses a gradual decline in temperatures. September's maximum and minimum temperature averages stand at 79.7°F (26.5°C) and 60.1°F (15.6°C) respectively, dropping to 53.4°F (11.9°C) and 38.1°F (3.4°C) by November. A clear reduction in rainfall levels from 1.97" (50mm) in September to 1.73" (44mm) in November marks this season.Winter weather in Webster Groves
Winter in Webster Groves, from December to February, brings the coldest temperatures. The average highs range from 37.8°F (3.2°C) to 42.3°F (5.7°C), while the average lows stand between 24.3°F (-4.3°C) and 30.6°F (-0.8°C). Snowfall is witnessed in January and February with February receiving the highest snowfall of 2.6" (66mm). Despite the lower temperatures, precipitation remains relatively steady during winter with smallest rainfall of 1.69" (43mm) in February.Weather in January
The beginning of the year in Webster Groves, Missouri, sees frigid temperatures and short days. January brings the lowest temperatures of the year, with average high and low values registering at 37.8°F (3.2°C) and 24.3°F (-4.3°C), respectively. Weather in January »Weather in February
February is yet another cold month in Webster Groves, although the daylight hours start to increase. February experiences marginally higher temperatures than January, but cold weather still dominates. It provides residents with a distinct winter feel, characterized by frequent snowfall and fully leafless trees. Weather in February »Weather in March
A transition towards warmer weather can be identified in Webster Groves, Missouri, during the month of March. There remains a noticeable chill, especially during nights, however daytime temperatures hint at the arrival of Spring. Weather in March »Weather in April
In April, Webster Groves witnesses a definitive transition from winter to spring. The weather becomes more temperate, heralding the bloom of spring flowers across the city. However, increased rainfall characterizes this month, totaling at an average of 3.31" (84mm). Weather in April »Weather in May
May delivers a noticeable warming trend, setting the stage for the impending summer in Webster Groves, Missouri. The days continue to stretch longer, while the city witnesses a decline in precipitation. Abundant sunlight renders the many parks and outdoor spaces in the city, ideal spots for relaxation and recreational activities. Weather in May »Weather in June
June brings eagerly anticipated summer weather to Webster Groves, Missouri. Robust daylight conditions persist, especially towards the end of the month, leading to more outdoor activities and enjoyment of local attractions. High temperatures signpost the peak of the season, creating a quintessential summer atmosphere with frequent visits to swimming pools and air conditioning becoming a norm. Weather in June »Weather in July
July marks mid-summer in Webster Groves, and it is characterized by hot days and warm nights. The mercury soars from previous months, achieving the highest recorded values at 86.9°F (30.5°C) during the day and 69.1°F (20.6°C) overnight. Weather in July »Weather in August
Weather in August in Webster Groves, Missouri, often mirrors that of July's condition. The city experiences a slight decline in average temperatures but the weather largely remains steady. August signals the fading phase of summer, though locals continue to lean on their air conditioning and pool visits. Weather in August »Weather in September
September marks the onset of fall in Webster Groves, bringing significant changes to the climate. The longing for cooler climes finds relief as temperatures begin to recede. Outdoor activities remain prevalent, albeit the preference shifts towards bonfires, hiking, and apple picking. Weather in September »Weather in October
The transition from summer to fall culminates in October in Webster Groves, Missouri. Cooling temperatures foster the arrival of sweater weather, with residents enthusiastic about the wonderful fall foliage unfolding in the city's parks and trails. Weather in October »Weather in November
November in Webster Groves marks the nearing end of the year, bringing much colder weather. Falling leaves and frosty mornings underscore the transition to winter, and outdoor activities take a backseat. Winter clothing becomes mandatory, as temperatures drop considerably from the months preceding it. Weather in November »Weather in December
In Webster Groves, Missouri, December signals the onset of winter, often synonymous with snowfall and severe cold. Residents expect to see more cloudy days, fewer sunshine hours and the likelihood of snow intensifying as the month progresses. Weather in December »Updated: Jun 16, 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
January is the coldest month, exhibiting average temperatures of 37.8°F (3.2°C) at the peak and 24.3°F (-4.3°C) at the base.
Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
In Webster Groves, during the entire year, snow falls for 16.2 days and aggregates up to 8.19" (208mm) of snow.
With an average of 4.6h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
February is the month with the least rainfall. Rain falls for 7.6 days and accumulates 1.69" (43mm) of precipitation.
The month with the most snowfall is February, when snow falls for 5.2 days and typically aggregates up to 2.6" (66mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
In Webster Groves, snow does not fall in April through October.
With an average relative humidity of 78%, May is the most humid month.
The month with the most rainfall in Webster Groves is May, when the rain falls for 16.9 days and typically aggregates up to 3.58" (91mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
With an average of 14h and 48min of daylight, June has the longest days of the year.
The months with the most sunshine are June and July, with an average of 10.5h of sunshine.
Webster Groves reaches its average highest temperatures in July, measuring 86.9°F (30.5°C) at the peak and 69.1°F (20.6°C) at the lowest.
The least humid month is October, with an average relative humidity of 70%.
The month with the shortest days in Webster Groves is December, with an average of 9h and 30min of daylight.
Average temperature
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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
Webster Groves, 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).
