Climate and monthly weather forecastCape Girardeau, MO
Climate and monthly weather forecast
The climate of Cape Girardeau
Cape Girardeau, positioned in the state of Missouri, USA, sits within a climatic area classified as Cfa or humid subtropical. Under the Köppen climate classification system, this suggests the area does not experience a dry season. Variability is evident across the various weather parameters throughout the year. Monthly average temperatures range from lows of 27.9°F (-2.3°C) in winter months to highs of 88.3°F (31.3°C) in the height of summer. Monthly average humidity also experiences minor fluctuations, from a low of 69% in October to a high of 78% in both March and May.Rainfall levels see some variance, with the highest monthly average amount in April at 4.33in and the lowest in September at 1.5in. Similarly, days with rainfall span from 9.8 days in January to a high of 17 days in July. As expected in a subtropical climate, snowfall is a rare occurrence, with the highest monthly average amount at 2.17in in February. Unsurprisingly, most months record no days with snowfall.
Cape Girardeau enjoys 9.6 to 14.7 daylight hours a day, with the longest days in June and the shortest in December. Sunshine duration also swings between 4.8 hours per day in February and a generous 10.7 hours per day in June. Meanwhile, the UV index remains mostly moderate, peaking at 6 from May to August. Cloud cover is relatively constant throughout the year, slightly increasing in the colder months. The general wind speed ranges around 5.7mph (9.2km/h) in August to 9.1mph (14.6km/h) in both January and February, with highest gust speeds reaching 14.6mph (23.5km/h) in January.
The best time to visit Cape Girardeau
For visitors looking to experience the ideal weather conditions, the best time to visit is between May and June. During these months temperatures are warm, with average highs ranging from 76.3°F (24.6°C) in May to 86°F (30°C) in June. This period also sees the highest amount of sunshine, with an average of 9.3 to 10.7 hours per day respectively.Moreover, rainfall is moderate with averages oscillating from 3.98in in May to 2.99in in June, providing opportunities to explore the city’s vibrant landscapes without significant disturbance from showers. While the UV index peaking at 6 suggests visitors should take precautions for sun protection.
The worst time to visit Cape Girardeau
Given the climatic characteristics, the least desirable time to visit Cape Girardeau would largely be in winter, particularly January and February. During these months, average highs descend to the 40s°F with lows dropping to around freezing point. In addition, this period experiences meager sunlight at approximately 4.9 hours per day and increased probability of snowfall.Spring weather in Cape Girardeau
Spring in Cape Girardeau from March to May presents a temperate climate landscape with high temperatures escalating from 56.3°F (13.5°C) in March to 76.3°F (24.6°C) by May. Rain incidence and duration also intensifies, peaking at an average of 4.33in spread over 15.3 days in April. Simultaneously, sunlight and daylight hours increase, reaching up to 9.3 hours and 14.2 hours by May, respectively.Summer weather in Cape Girardeau
Summer months from June through August bring increased temperatures to Cape Girardeau, averaging from 86°F (30°C) in June to a peak of 88.3°F (31.3°C) in July. Correspondingly, humidity escalates slightly while rainfall levels decline after peaking in spring. Sunshine reaches its highest point of the year with an average of 10.7 hours per day in June. The UV index underscores the need for sun safety measures with ratings of 6 throughout this period.Autumn weather in Cape Girardeau
Autumn in Cape Girardeau witnesses a gradual decrease in temperatures, with highs declining from 81.1°F (27.3°C) in September to 68.9°F (20.5°C) by October’s end. Concurrently, rainfall tends to dip, with September seeing the least yearly rainfall at just 1.5in. Hours of sunshine and daylight start to shorten, winding down from 9.7 hours per day and 12.4 daylight hours in September.Winter weather in Cape Girardeau
Winter is the coldest period in Cape Girardeau, with average highs bottoming out from 54.7°F (12.6°C) in November to 41°F (5°C) by January. The frequency of rainfall remains steady, with days of rainfall varying from 10.5 in October to 10.1 in November. Notably, this season records the only occurrence of snowfall, with monthly averages peaking at 2.17in in February. Sunshine is at its lowest during these months, offering a scant 5 hours per day by December.Weather in January
The year in Cape Girardeau, Missouri commences with chilly January. Be prepared - the city experiences some of its lowest temperatures in this month, plummeting to as low as 27.9°F (-2.3°C) at night while reaching highs around 41°F (5°C) in daytime. Weather in January »Weather in February
Transitioning from January, February marks the peak of winter in Cape Girardeau. Temperatures, although still on the colder side with lows at 31.5°F (-0.3°C), display a small hike from the previous month, making it slightly more bearable. Weather in February »Weather in March
March brings a welcome transition from winter to spring in Cape Girardeau. With temperatures now climbing up to a comfortable 40.5°F (4.7°C) at night and a pleasant 56.3°F (13.5°C) during the day, the city starts to thaw under the spring sunshine. Weather in March »Weather in April
April in Cape Girardeau, Missouri exhibits a marked transition towards warmer weather. Temperatures in the city rise incrementally, with balmy nights recording 49.8°F (9.9°C) and mild, sunlit days touching to 67.1°F (19.5°C). Weather in April »Weather in May
May marks the commencement of summer in Cape Girardeau. With temperatures now hitting highs at 76.3°F (24.6°C) and lows at a mild 59°F (15°C), the city starts to heat up. The average rainfall slightly dips to 3.98" (101mm) from the preceding month. Weather in May »Weather in June
Cape Girardeau enjoys the full swing of summer in June. As temperatures rise, high to as much as 86°F (30°C) and low to 67.5°F (19.7°C), this month stimulates ample outdoor activities. The humidity is relatively high, leading to warm days and sultry nights. Weather in June »Weather in July
July represents the pinnacle of summer in Cape Girardeau. Reaching its highest peak at a warm 88.3°F (31.3°C) and reaching lows to 69.4°F (20.8°C), the city enjoys its warmest month. Rainfall does occur, but it does little to dampen the palpable summer energy. Weather in July »Weather in August
As August arrives in Cape Girardeau, it brings a subtle hint of impending autumn. Though the days still see high temperatures at 86.2°F (30.1°C) and nights record 67.1°F (19.5°C), a slight dip compared to July, it is still firmly within the bounds of summer. Weather in August »Weather in September
September marks an endearing transition from balmy summer to refreshing autumn. With the decrease in temperature to highs of 81.1°F (27.3°C) and lows of 61.3°F (16.3°C), the city start experiencing cooler nights and warm days. Weather in September »Weather in October
October brings full-blown autumn to Cape Girardeau, with temperature highs falling to 68.9°F (20.5°C) and lows to a chilling 50.7°F (10.4°C). The city adopts a mellow, earthy tone with crispy leaves underfoot and cooler, shorter days. Weather in October »Weather in November
November introduces early winter to Cape Girardeau with temperatures ranging between lows of 39.7°F (4.3°C) and highs of 54.7°F (12.6°C). The golden hues of the city begin to fade as winter slowly takes over. As the city prepares for the impending cold, the remaining autumn leaves form a beautiful contrast against the increasingly barren trees. Weather in November »Weather in December
As Cape Girardeau welcomes December, the full force of winter sets in. Recorded lows of temperature hit 33.1°F (0.6°C) and highs are limited to around 45.5°F (7.5°C), creating a chilled ambiance. Snow showers drape the city in a blanket of white, transforming it into a winter wonderland. Weather in December »Updated: Feb 12, 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
In Cape Girardeau, January is the coldest month, with temperatures averaging a high of 41°F (5°C) and a low of 27.9°F (-2.3°C).
Throughout the year, in Cape Girardeau, Missouri, there are 158.6 rainfall days, and 35.59" (904mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
In Cape Girardeau, Missouri, during the entire year, snow falls for 11.2 days and aggregates up to 4.92" (125mm) of snow.
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Cape Girardeau.
The month with the most snowfall is February, when snow falls for 3.6 days and typically aggregates up to 2.17" (55mm) of snow.
February has the least sunshine of the year in Cape Girardeau, Missouri, with an average of 4.8h of sunshine.
The months with the highest humidity in Cape Girardeau, Missouri, are March and May, with an average relative humidity of 78%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cape Girardeau, 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.
The month with the most rainfall in Cape Girardeau, Missouri, is April, when the rain falls for 15.3 days and typically aggregates up to 4.33" (110mm) of precipitation.
May through September are months without snowfall in Cape Girardeau, Missouri.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Cape Girardeau.
The month with the longest days in Cape Girardeau is June, with an average of 14h and 42min of daylight.
June has the most sunshine of the year in Cape Girardeau, Missouri, with an average of 10.7h of sunshine.
Cape Girardeau's temperature records reveal July as the warmest month, marked by average highs of 88.3°F (31.3°C) and lows of 69.4°F (20.8°C).
The month with the least rainfall in Cape Girardeau, Missouri, is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.
With an average relative humidity of 69%, October is the least humid month in Cape Girardeau.
With an average of 9h and 36min of daylight, December has the shortest days of the year.
Average temperature
Cape Girardeau, MO
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure
Cape Girardeau, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"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:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Cape Girardeau, MO
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.7mph - Average wind speed in November:
8.4mph - Average wind speed in December:
8.6mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Cape Girardeau, MO
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Cape Girardeau, MO
- Average rainfall in January:
2.32" - Average rainfall in February:
3.07" - Average rainfall in March:
3.54" - Average rainfall in April:
4.33" - Average rainfall in May:
3.98" - Average rainfall in June:
2.99"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.72" - Average rainfall in September:
1.5" - Average rainfall in October:
2.83" - Average rainfall in November:
2.95" - Average rainfall in December:
2.44"
The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Cape Girardeau, MO
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).
Average snowfall
Cape Girardeau, MO
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Cape Girardeau, MO
- Average snowfall days in January:
3.7 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
1.3 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 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
1.6 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Cape Girardeau, MO
- Average daylight in January:
9h and 54min - 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 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - 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 12min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 42min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 42min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Cape Girardeau, MO
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).
Average UV index
Cape Girardeau, 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
Cape Girardeau, MO
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).
Average visibility
Cape Girardeau, 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).
