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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, the same as December, in Alton, New York, is a freezing cold winter month, with an average temperature ranging between max 29.7°F (-1.3°C) and min 21°F (-6.1°C). January is the month when Alton sees the lowest average temperatures, with a high of 29.7°F (-1.3°C) and a low of 21°F (-6.1°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Alton, New York, with an average temperature fluctuating between 31.6°F (-0.2°C) and 22.3°F (-5.4°C). February brings an average high-temperature of a still freezing cold 31.6°F (-0.2°C), nearly identical to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Alton, is an icy month, with an average temperature ranging between min 29.1°F (-1.6°C) and max 38.8°F (3.8°C). March's onset brings a subtle temperature rise, moving from a subzero cold 31.6°F (-0.2°C) in February to an icy 38.8°F (3.8°C). Weather in March »
Weather in April
April in Alton, New York, is a chilly spring month, with an average temperature varying between 49.6°F (9.8°C) and 38.1°F (3.4°C). The beginning of April signals a rise in the average high-temperature, moving from a cold 38.8°F (3.8°C) in March to a frosty 49.6°F (9.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Alton, New York, with an average temperature ranging between max 60.6°F (15.9°C) and min 48.7°F (9.3°C). May indicates a change in the average high-temperature, moving up from a frosty 49.6°F (9.8°C) in April to a mild 60.6°F (15.9°C). Weather in May »
Weather in June
June, the first month of the summer in Alton, is an agreeable month, with an average temperature ranging between max 69.1°F (20.6°C) and min 57°F (13.9°C). June's arrival coincides with a marginal rise in the average high-temperature, moving from May's moderate 60.6°F (15.9°C) to a pleasant 69.1°F (20.6°C). Weather in June »
Weather in July
July in Alton, New York, is a warm summer month, with an average temperature fluctuating between 76.5°F (24.7°C) and 64.2°F (17.9°C). July stands out as Alton's warmest month, with temperatures ranging between an average high of 76.5°F (24.7°C) and a low of 64.2°F (17.9°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Alton, New York, with an average temperature ranging between min 64°F (17.8°C) and max 75.9°F (24.4°C). August's average high-temperature is a still moderately hot 75.9°F (24.4°C), maintaining a close comparison with July's 76.5°F (24.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Alton, is also an agreeable month, with an average temperature varying between 70.2°F (21.2°C) and 57.9°F (14.4°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 75.9°F (24.4°C) to an agreeable 70.2°F (21.2°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Alton, New York, with an average temperature fluctuating between 58.1°F (14.5°C) and 48°F (8.9°C). The decrease of average high-temperatures is mild in October, with a decline from an agreeable 70.2°F (21.2°C) in September to a refreshing 58.1°F (14.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Alton, is another chilly month, with an average temperature fluctuating between 36.5°F (2.5°C) and 45.9°F (7.7°C). The shift from October to November involves a decrease in the average high-temperature, from a moderate 58.1°F (14.5°C) to a frosty 45.9°F (7.7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Alton, New York, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 36.1°F (2.3°C). The average high-temperature decreases in December, shifting from a chilly 45.9°F (7.7°C) in November to a cold 36.1°F (2.3°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
What is the coldest month?
Alton experiences its lowest temperatures in January, with an average peak of 29.7°F (-1.3°C) and a low of 21°F (-6.1°C).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 83%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 8.3 days and accumulates 2.05" (52mm) of precipitation.
How many days does it rain?
Throughout the year, there are 171.8 rainfall days, and 32.76" (832mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 67.1 snowfall days, and 22.99" (584mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 2.6h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 15.1 days and accumulates 6.26" (159mm) of snow.
When is Daylight Saving Time (DST) in Alton?
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.
When it does not snow?
In Alton, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 18min of daylight.
What part of the year is the hottest?
With an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 64.2°F (17.9°C), July is the warmest month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.8h of sunshine.
What is the month with the highest UV index?
July is the month with the highest UV index in Alton, with an average maximum UV index of 6.
What is the least humid month?
The least humid month is September, with an average relative humidity of 76%.
What is the rainiest month?
October is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.62" (92mm) of precipitation.
What is the month with the shortest days in Alton?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Average temperature
Alton, NY
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure
Alton, NY
- Average pressure in January:
30.05"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Alton, NY
- Average wind speed in January:
13.1mph - Average wind speed in February:
12.9mph - Average wind speed in March:
11.7mph - Average wind speed in April:
11.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
8.1mph - Average wind speed in September:
8.8mph - Average wind speed in October:
11mph - Average wind speed in November:
12mph - Average wind speed in December:
12.6mph
The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity
Alton, NY
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (76%).
Average rainfall
Alton, NY
- Average rainfall in January:
2.05" - Average rainfall in February:
2.13" - Average rainfall in March:
2.09" - Average rainfall in April:
2.91" - Average rainfall in May:
3.46" - Average rainfall in June:
3.11"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.99" - Average rainfall in September:
2.32" - Average rainfall in October:
3.62" - Average rainfall in November:
2.52" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Alton, NY
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
15.3 days - Average rainfall days in October:
17.8 days - Average rainfall days in November:
12.9 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (7.9 days).
Average snowfall
Alton, NY
- Average snowfall in January:
4.17" - Average snowfall in February:
6.26" - Average snowfall in March:
2.44" - Average snowfall in April:
1.14" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Alton, NY
- Average snowfall days in January:
16.6 days - Average snowfall days in February:
15.1 days - Average snowfall days in March:
10.3 days - Average snowfall days in April:
3.3 days - Average snowfall days in May:
0.5 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:
0.7 days - Average snowfall days in November:
6.1 days - Average snowfall days in December:
14.5 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Alton, NY
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
2h and 4min - Average sunshine in February:
2h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 2min - Average sunshine in December:
3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days
Alton, NY
- Average sunshine days in January:
6.5 days - Average sunshine days in February:
6.3 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
10.8 days - Average sunshine days in September:
12.4 days - Average sunshine days in October:
9.7 days - Average sunshine days in November:
10 days - Average sunshine days in December:
7 days
The month with the most sunshine days is May (12.7 days).
The month with the least sunshine days is February (6.3 days).
Average UV index
Alton, NY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Alton, NY
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Alton, NY
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Alton, New York, USA
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