Climate and monthly weather forecastDean, WV
Climate and monthly weather forecast
Weather in January
January, like December, in Dean, West Virginia, is another cold winter month, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 35.4°F (1.9°C). With its high average temperature of 35.4°F (1.9°C) and a low of 22.1°F (-5.5°C), January is regarded as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Dean, West Virginia, with an average temperature ranging between max 39.6°F (4.2°C) and min 25°F (-3.9°C). With the advent of February, Dean's high-temperatures adjust to a still wintry 39.6°F (4.2°C), closely aligning with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Dean, is a chilly month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 32.9°F (0.5°C). Dean's transition into March is marked by a temperature shift, moving from a cold 39.6°F (4.2°C) in February to a frosty 49.6°F (9.8°C). Weather in March »Weather in April
April is a comfortable spring month in Dean, West Virginia, with temperature in the range of an average high of 61.9°F (16.6°C) and an average low of 42.6°F (5.9°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a frosty 49.6°F (9.8°C) to a refreshing 61.9°F (16.6°C). Weather in April »Weather in May
May, the last month of the spring in Dean, is a warm month, with an average temperature varying between 73.4°F (23°C) and 52.2°F (11.2°C). May's onset witnesses a shift in the average high-temperature, moving from a refreshing 61.9°F (16.6°C) in April to a moderately hot 73.4°F (23°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Dean, West Virginia, with an average temperature ranging between max 80.2°F (26.8°C) and min 58.5°F (14.7°C). In Dean, the onset of June comes with a modest high-temperature shift, transitioning from May's 73.4°F (23°C) to a still moderately hot 80.2°F (26.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Dean, West Virginia, with an average temperature varying between 84°F (28.9°C) and 61.9°F (16.6°C). July, on average, is the warmest month, registering a high temperature of 84°F (28.9°C) and a low of 61.9°F (16.6°C). For most parts of July, the heat index is calculated to be a hot 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Dean, is also a moderately hot month, with an average temperature fluctuating between 82.8°F (28.2°C) and 59.9°F (15.5°C). The unfolding of August shows an average high-temperature of a still warm 82.8°F (28.2°C), indicating a slight variance from July's 84°F (28.9°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Dean, West Virginia, with an average temperature ranging between min 55.4°F (13°C) and max 76.6°F (24.8°C). The move into September indicates a slight reduction in the average high-temperature, down from August's 82.8°F (28.2°C) to a still warm 76.6°F (24.8°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Dean, West Virginia, with an average temperature fluctuating between 45.5°F (7.5°C) and 63.3°F (17.4°C). Onset of October witnesses a reduction in the average high-temperature, falling from a moderately hot 76.6°F (24.8°C) in September to an enjoyable 63.3°F (17.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Dean, West Virginia, with an average temperature varying between 50.7°F (10.4°C) and 35.2°F (1.8°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a comfortable 63.3°F (17.4°C) to a fresh 50.7°F (10.4°C). Weather in November »Weather in December
December, the first month of the winter in Dean, is still a cold month, with an average temperature varying between 41.4°F (5.2°C) and 29.3°F (-1.5°C). December comes with a decrease in the average high-temperature, falling from a fresh 50.7°F (10.4°C) in November to a cold 41.4°F (5.2°C). Weather in December »Updated: Aug 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 stands out as Dean's coldest month, with temperatures ranging between an average high of 35.4°F (1.9°C) and a low of 22.1°F (-5.5°C).
In Dean, during the entire year, the rain falls for 176.6 days and collects up to 25.91" (658mm) of precipitation.
January through April, November and December are months with snowfall.
January is the month with the most snowfall in Dean. Snow falls for 14.7 days and accumulates 3.19" (81mm) of snow.
In Dean, during the entire year, snow falls for 46.7 days and aggregates up to 11.38" (289mm) of snow.
The month with the least sunshine is January, with an average of 3.3h of sunshine.
The most humid month is February, with an average relative humidity of 84%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The month with the most rainfall is May, when the rain falls for 19.6 days and typically aggregates up to 2.91" (74mm) of precipitation.
In Dean, snow does not fall in May through October.
The month with the longest days is June, with an average of 14h and 54min of daylight.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Dean.
Dean's July weather, with an average high temperature of 84°F (28.9°C) and an average low temperature of 61.9°F (16.6°C), tends to be the warmest of the year.
August is the least humid month, with an average relative humidity of 77%.
The month with the most sunshine is August, with an average of 10.1h of sunshine.
The month with the least rainfall is September, when the rain falls for 13.6 days and typically collects 1.61" (41mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 24min of daylight.
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Dean, WV
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure
Dean, WV
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"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:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.12"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
Dean, WV
- Average wind speed in January:
7mph - Average wind speed in February:
7mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.6mph - Average wind speed in May:
5.4mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.5mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6.4mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity
Dean, WV
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (77%).
Average rainfall
Dean, WV
- Average rainfall in January:
1.69" - Average rainfall in February:
1.93" - Average rainfall in March:
2.17" - Average rainfall in April:
2.68" - Average rainfall in May:
2.91" - Average rainfall in June:
2.6"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.05" - Average rainfall in September:
1.61" - Average rainfall in October:
1.77" - Average rainfall in November:
1.65" - Average rainfall in December:
2.13"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days
Dean, WV
- Average rainfall days in January:
10.2 days - Average rainfall days in February:
11.2 days - Average rainfall days in March:
15 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
19.6 days - Average rainfall days in June:
17.6 days
- Average rainfall days in July:
18.2 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
13.6 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
11.6 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (10.2 days).
Average snowfall
Dean, WV
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Dean, WV
- Average snowfall days in January:
14.7 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.1 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 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
10.2 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Dean, WV
- Average daylight in January:
9h and 42min - 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 24min - 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 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 24min).
- Average sunshine in January:
3h and 18min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 18min - Average sunshine in December:
3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Dean, WV
- Average sunshine days in January:
8.7 days - Average sunshine days in February:
8.7 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
10.5 days
The month with the most sunshine days is November (16.9 days).
The months with the least sunshine days are January and February (8.7 days).
Average UV index
Dean, WV
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Dean, WV
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Dean, WV
The month with the highest visibility is November (6mi).
The month with the lowest visibility is January (4mi).
