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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another chilly winter month in Alton, Virginia, with an average temperature fluctuating between 45.5°F (7.5°C) and 30.4°F (-0.9°C). January is Alton's coldest month, registering average high temperatures of 45.5°F (7.5°C) and lows of 30.4°F (-0.9°C). Weather in January »
Weather in February
February, the last month of the winter in Alton, is a fresh month, with an average temperature varying between 50.4°F (10.2°C) and 33.3°F (0.7°C). February brings an average high-temperature of a fresh 50.4°F (10.2°C), nearly identical to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Alton, Virginia, with an average temperature fluctuating between 57.7°F (14.3°C) and 39.7°F (4.3°C). In Alton, the onset of March comes with a modest high-temperature shift, transitioning from February's fresh 50.4°F (10.2°C) to a moderate 57.7°F (14.3°C). Weather in March »
Weather in April
April in Alton, Virginia, is an agreeable spring month, with an average temperature ranging between max 69.6°F (20.9°C) and min 49.3°F (9.6°C). April's onset witnesses a shift in the average high-temperature, moving from a moderate 57.7°F (14.3°C) in March to a pleasant 69.6°F (20.9°C). Weather in April »
Weather in May
May, the last month of the spring in Alton, is a warm month, with an average temperature fluctuating between 78.3°F (25.7°C) and 57.7°F (14.3°C). As May sets, the average high-temperature shows a slight increase, moving up from a pleasant 69.6°F (20.9°C) in April to a warm 78.3°F (25.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Alton, Virginia, with an average temperature varying between 64.6°F (18.1°C) and 86.4°F (30.2°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a warm 78.3°F (25.7°C) in May to a hot 86.4°F (30.2°C). Weather in June »
Weather in July
July, like June, is a hot summer month in Alton, Virginia, with an average temperature varying between 68.5°F (20.3°C) and 90.3°F (32.4°C). With average temperatures fluctuating between a high of 90.3°F (32.4°C) and a low of 68.5°F (20.3°C), July stands out as the warmest month. During July, the heat index is calculated to be a blisteringly hot 105.8°F (41°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Alton, Virginia, with an average temperature ranging between min 66.7°F (19.3°C) and max 88.2°F (31.2°C). At the start of August, Alton's average high-temperature reaches a still tropical 88.2°F (31.2°C), subtly different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Alton, is still a warm month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 81.5°F (27.5°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's tropical 88.2°F (31.2°C) to a warm 81.5°F (27.5°C). Weather in September »
Weather in October
October, the same as September, in Alton, Virginia, is another pleasant autumn month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 51.3°F (10.7°C). Setting in of October comes with a decrease in the average high-temperature, moving from a warm 81.5°F (27.5°C) in September to an agreeable 70°F (21.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a moderate month in Alton, Virginia, with an average temperature fluctuating between 40.5°F (4.7°C) and 57.6°F (14.2°C). The onset of November brings a small change in high-temperatures, falling from an agreeable 70°F (21.1°C) in October to a moderate 57.6°F (14.2°C). Weather in November »
Weather in December
December, the first month of the winter in Alton, is also a frosty month, with an average temperature varying between 35.6°F (2°C) and 49.8°F (9.9°C). With December's onset, the weather reveals a slight temperature decrease, transitioning from a moderate 57.6°F (14.2°C) in November to a frosty 49.8°F (9.9°C). Weather in December »
Updated: Feb 14, 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
What is the coldest time of year in Alton?
Temperature records mark January as the coldest month, with highs averaging 45.5°F (7.5°C) and lows at 30.4°F (-0.9°C).
How many days does it rain in Alton?
Throughout the year, there are 157.9 rainfall days, and 29.57" (751mm) of precipitation is accumulated.
When does it snow in Alton?
January through April, November and December are months with snowfall in Alton, Virginia.
When does it snow the most in Alton?
January is the month with the most snowfall in Alton. Snow falls for 3.1 days and accumulates 2.48" (63mm) of snow.
How many days does it snow in Alton?
In Alton, Virginia, during the entire year, snow falls for 9.2 days and aggregates up to 7.64" (194mm) of snow.
What are the months with the lowest UV index in Alton?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Alton, Virginia.
When is Daylight Saving Time (DST) in Alton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Alton, Virginia, 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.
What is the wettest month in Alton?
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 2.95" (75mm) of precipitation.
When it does not snow in Alton?
In Alton, snow does not fall in May through October.
When are the longest days in Alton?
The month with the longest days in Alton is June, with an average of 14h and 36min of daylight.
What month has the most sunshine in Alton?
With an average of 10.7h of sunshine, June has the most sunshine of the year.
What time of the year is the hottest in Alton?
Alton, Virginia, reaches its average highest temperatures in July, measuring 90.3°F (32.4°C) at the peak and 68.5°F (20.3°C) at the lowest.
What is the least humid month in Alton?
The least humid month is July, with an average relative humidity of 69%.
When is the highest UV index in Alton?
The month with the highest UV index in Alton is July, with an average maximum UV index of 7.
What is the driest month in Alton?
The month with the least rainfall in Alton, Virginia, is September, when the rain falls for 13 days and typically collects 1.77" (45mm) of precipitation.
What is the most humid month in Alton?
December is the most humid month in Alton, Virginia, with an average relative humidity of 77%.
What is the month with the shortest days in Alton?
December has the shortest days of the year, with an average of 9h and 42min of daylight.
What is the month with the least sunshine in Alton?
December has the least sunshine of the year in Alton, with an average of 5.4h of sunshine.
Average temperature
Alton, VA
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure
Alton, VA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed
Alton, VA
- Average wind speed in January:
6.7mph - Average wind speed in February:
7mph - Average wind speed in March:
7mph - Average wind speed in April:
7.3mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6mph - Average wind speed in November:
6mph - Average wind speed in December:
6.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Alton, VA
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Alton, VA
- Average rainfall in January:
2.48" - Average rainfall in February:
2.72" - Average rainfall in March:
2.6" - Average rainfall in April:
2.56" - Average rainfall in May:
2.95" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.2" - Average rainfall in August:
2.44" - Average rainfall in September:
1.77" - Average rainfall in October:
2.32" - Average rainfall in November:
2.52" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days
Alton, VA
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
10.5 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall
Alton, VA
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Alton, VA
- Average snowfall days in January:
3.1 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.2 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:
0.3 days - Average snowfall days in December:
1.1 days
The months with the highest number of snowfall days are January and February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Alton, VA
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 5min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 3min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days
Alton, VA
- Average sunshine days in January:
18 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Alton, VA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Alton, VA
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility
Alton, VA
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Alton, Virginia, USA
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