Climate and monthly weather forecastCharles Town, WV
Climate and monthly weather forecast
The climate of Charles Town
Situated in West Virginia, USA, Charles Town experiences a humid subtropical climate, classified as 'Cfa' as per Köppen climate classification. This indicates the presence of high temperature and increased humidity, with substantial precipitation throughout the year.When delving into the weather makeup, the average high temperature fluctuates from a chilly 37.9°F (3.3°C) in January to a warm 86.5°F (30.3°C) in July. Similarly, the low temperature ranges, moderately, from 24.1°F (-4.4°C) in January to 64.4°F (18°C) in July. The humidity levels relatively rotate between 73 and 78%, indicating a reliably moist environment all year round.
Regarding precipitation, rainfall measures from 1.89" (48mm) in September to a high of 3.15" (80mm) in May, July, and August. Precipitous days vary from 9.2 in January to a maximum of 17.8 in May. The months from May to August display a unique, consistent magnitude of rainfall, thereby emphasizing the humid nature of this region throughout most of the year.
Snow is a common sight during colder months, with January receiving the highest amount at 4.17" (106mm), and snowfall days peaking to 7.8. From May to September, the city experiences a snow-free environment due to rising temperatures.
Coupled with the high humidity and rainfall, one notices a considerable amount of cloud coverage, a hefty 46% in January and December. A high cloud coverage signifies cloudy or overcast skies for most parts of the year.
The best time to visit Charles Town
Given the figures on temperature, sunshine hours, and rainfall; June, July, and August appear to be the best times to visit Charles Town. These months showcase high temperatures between 73.4°F (23°C) and 86.5°F (30.3°C), creating an agreeable atmosphere for outdoor activities. Adding to the pleasant scenery, the sunshine hours peak to a high of 10.7 hours in July, offering bountiful sunlight for exploration. Rainfall, although slightly elevated at 3.15" (80mm), doesn't severely disrupt most outdoor activities.The worst time to visit Charles Town
Contrastingly, January stands as the least favorable time to visit Charles Town. Temperatures descend to a low of 24.1°F (-4.4°C), and high temperatures scarcely reach 37.9°F (3.3°C). Additionally, snowfall is at its peak with up to 4.17" (106mm) of snow covering the city. The city receives a limited amount of daylight, only 9.8 hours, and a mere 5.1 hours of sunshine.Spring weather in Charles Town
Spring ushers in a period of moderate temperatures with highs ranging from 51.1°F (10.6°C) in March to 73.4°F (23°C) in May. Lows, during the same period, fluctuate from 33.6°F (0.9°C) to 52.5°F (11.4°C). This period experiences increased daylight with 13.3 hours in April extending to 14.3 hours in May. Rainfall figures relatively elevate, increasing from 2.4" (61mm) in March to a high 3.15" (80mm) in May.Summer weather in Charles Town
Delving into summer, temperatures elevate markedly with highs ranging from 73.4°F (23°C) in June to the annual peak of 86.5°F (30.3°C) in July. Corresponding night-time lows, rather comfortably, range from 60.4°F (15.8°C) to 64.4°F (18°C). Despite the higher temperatures and rainfall reaching 3.15" (80mm), sunshine hours peak, reaching up to 10.7 hours per day in July. The city experiences the maximum daylight of the year during this season, peaking at 14.9 hours in June.Autumn weather in Charles Town
Autumn denotes a transition from the sweltering summer to the cold winter. Temperatures commence their descent with highs ranging from 77°F (25°C) in September to 52.2°F (11.2°C) by November. Corresponding lows also decline from 56.8°F (13.8°C) to 35.8°F (2.1°C) within the same interval. Rainfall peaks to 2.64" (67mm) in October but reverts to 2.17" (55mm) in November. Despite the receding daylight hours, the city continues to enjoy a reasonable amount of sunshine, between 8.9 hours in September to 5.8 hours in November.Winter weather in Charles Town
Finally, winter brings with it a chilly atmosphere, with temperature highs oscillating between 52.2°F (11.2°C) in December and 37.9°F (3.3°C) in January. Lows drop further, reaching a freezing 24.1°F (-4.4°C) in January. Quite noticeably, snowfall peaks at 4.17" (106mm) in January with up to 7.8 days of snow anticipated. Despite the chilly conditions, the winter sun brings some relief with up to 5.1 hours of sunshine, despite the reduced daylight hours of 10 in December to 9.5 in January.Weather in January
January in Charles Town, West Virginia begins the year with a wintry chill as temperatures can drop as low as 24.1°F (-4.4°C) and reach no higher than 37.9°F (3.3°C), marking this month as one of the coldest. The city experiences snowfall making it a winter wonderland. Weather in January »Weather in February
As the calendar turns to February, Charles Town gradually starts to thaw, but winter's grip remains. With a slightly increased average high temperature compared to January, the crisp winter air and snowy landscapes persist. February witnesses nearly 10.7 hours of daylight, a prevalence of cloudy conditions, and a continued low UV index. Weather in February »Weather in March
In March, seasonal changes are evident with a more significant increase in temperatures. The transition from winter to spring is marked by occasional rain showers and a reduction in snowfall, compared to the preceding months. Daylight hours continue their upward trend, providing ample time for outdoor activities. Weather in March »Weather in April
April embraces spring fully with significant leaps in average temperatures and reduced snowfall, compared to March. The moderate climate, coupled with Charles Town's extended daylight hours, encourages outdoor exploration and recreational activities. Weather in April »Weather in May
In May, Charles Town witnesses the arrival of warmer temperatures, a marked change from the nippy season that characterized the previous month, April. Tender spring showers dominate much of May, with a significant increase in rainfall. Weather in May »Weather in June
As summer commences in June, Charles Town experiences its highest temperatures yet, a substantial rise from May. Scorching midday suns bring increased daylight hours, making it ideal for sunbathing and leisurely picnics. However, despite no snowfall and less cloudiness compared to previous months, June experiences its fair share of summer showers. Weather in June »Weather in July
July brings the heat in Charles Town with an average high of 86.5°F (30.3°C), marking it as the hottest month of the year. Compared to June, days are akin with similar daylight and sunshine hours. Despite the scorching sun, July experiences frequent showers, and it is advised to always carry an umbrella. Weather in July »Weather in August
In August, temperatures marginally plummet compared to July’s peaks, signalling the onset of the end of the summer season. Despite the slight dip, August continues to favour warm weather lovers. Frequent showers remain characteristic of this month. Weather in August »Weather in September
Summer transitions to fall in September, with a notable decrease in temperatures relative to August. The changing season brings reduced daylight and sunshine hours, hinting at the upcoming autumnal equinox. Minimalistic rainfall is noticeable, and cloud cover begins to increase. Weather in September »Weather in October
October in Charles Town sees a further decrease in temperatures, solidifying the entrance of fall and departure of the summer season, prevalent in September. Characterized by decreasing daylight hours and a significant plunge in temperature, the beginning of fall chill fills the air. Weather in October »Weather in November
November weather in Charles Town marks the transition from fall to winter with a significant reduction in average temperatures relative to October. The city experiences an increase in rainfall and a mild revisit of snowfall, making it a wetter month. Weather in November »Weather in December
December welcomes winter as temperatures drop sharply with lows around 30.7°F (-0.7°C), contrasting with November's mild cool. Snowfall consists of going up to 2.8" (71mm), embarking upon the arrival of a frosty season. Compared to its predecessor month, it has increased snowfall and reduced daylight hours. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Charles Town, WV
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure
Charles Town, WV
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Charles Town, WV
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.1mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.2mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.9mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Charles Town, WV
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Charles Town, WV
- Average rainfall in January:
2.13" - Average rainfall in February:
2.2" - Average rainfall in March:
2.4" - Average rainfall in April:
2.76" - Average rainfall in May:
3.15" - Average rainfall in June:
2.44"
- Average rainfall in July:
3.15" - Average rainfall in August:
3.15" - Average rainfall in September:
1.89" - Average rainfall in October:
2.64" - Average rainfall in November:
2.17" - Average rainfall in December:
2.52"
The wettest months (with the highest rainfall) are May, July and August (3.15").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Charles Town, WV
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall
Charles Town, WV
- Average snowfall in January:
4.17" - Average snowfall in February:
3.98" - Average snowfall in March:
3.9" - Average snowfall in April:
0.12" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Charles Town, WV
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
6.5 days - Average snowfall days in March:
4.3 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 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
4.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Charles Town, WV
- 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 18min - 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 6min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days
Charles Town, WV
- Average sunshine days in January:
16.1 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
12 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
19 days - Average sunshine days in December:
17 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Charles Town, WV
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
Charles Town, WV
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Charles Town, WV
The months with the highest visibility are February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, May, September and October (5mi).





