Climate and monthly weather forecastCommack, NY
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Commack, New York, with an average temperature varying between 37.6°F (3.1°C) and 28.9°F (-1.7°C). January tends to be the coldest month, with temperatures averaging a daily high of 37.6°F (3.1°C) and a low of 28.9°F (-1.7°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Commack, New York, with an average temperature fluctuating between 39°F (3.9°C) and 30.2°F (-1°C). February's onset brings an average high-temperature of a still icy 39°F (3.9°C), showing a minute difference from January's 37.6°F (3.1°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Commack, New York, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 36.1°F (2.3°C). The beginning of March reveals an average high-temperature of a frosty 44.2°F (6.8°C), showing minimal deviation from the previous month. Weather in March »Weather in April
April in Commack, New York, is a cool spring month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 53.1°F (11.7°C). Commack experiences a minor temperature shift with the start of April, with average high-temperatures moving from a frosty 44.2°F (6.8°C) in March to a cool 53.1°F (11.7°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Commack, New York, with an average temperature ranging between min 54°F (12.2°C) and max 62.6°F (17°C). May sees a rise in the average high-temperature, climbing from a fresh 53.1°F (11.7°C) in April to a refreshing 62.6°F (17°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Commack, New York, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 63.5°F (17.5°C). The onset of June brings a temperature shift, with the average high-temperature moving from an enjoyable 62.6°F (17°C) in May to an agreeable 71.8°F (22.1°C). Weather in June »Weather in July
July is a warm summer month in Commack, New York, with an average temperature fluctuating between 79.3°F (26.3°C) and 71.2°F (21.8°C). July tends to be the warmest month, with temperatures averaging a daily high of 79.3°F (26.3°C) and a low of 71.2°F (21.8°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Commack, New York, with an average temperature varying between 78.6°F (25.9°C) and 71.6°F (22°C). August begins with an average high-temperature of a still warm 78.6°F (25.9°C), reflecting close similarity to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Commack, is still a pleasant month, with an average temperature fluctuating between 64.8°F (18.2°C) and 72.3°F (22.4°C). Commack records a mild change in average high-temperature during September, easing from a moderately hot 78.6°F (25.9°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »Weather in October
October, like September, in Commack, New York, is another enjoyable autumn month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 54.7°F (12.6°C). The start of October involves a temperature drop, moving from an agreeable 72.3°F (22.4°C) in September to a refreshing 62.2°F (16.8°C). Weather in October »Weather in November
November, the last month of the autumn in Commack, is also a fresh month, with an average temperature fluctuating between 51.4°F (10.8°C) and 43.7°F (6.5°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 62.2°F (16.8°C) in October to a fresh 51.4°F (10.8°C). Weather in November »Weather in December
December, the first month of the winter in Commack, is still a chilly month, with an average temperature varying between 36°F (2.2°C) and 43.3°F (6.3°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a cool 51.4°F (10.8°C) in November to a chilly 43.3°F (6.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Commack, NY
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure
Commack, NY
- Average pressure in January:
30.05"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"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 (29.93"Hg).
Average wind speed
Commack, NY
- Average wind speed in January:
12.8mph - Average wind speed in February:
12.3mph - Average wind speed in March:
12.1mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
8.3mph - Average wind speed in August:
8.4mph - Average wind speed in September:
9.6mph - Average wind speed in October:
11.5mph - Average wind speed in November:
12.1mph - Average wind speed in December:
12.4mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity
Commack, NY
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Commack, NY
- Average rainfall in January:
2.2" - Average rainfall in February:
2.32" - Average rainfall in March:
2.76" - Average rainfall in April:
2.99" - Average rainfall in May:
2.99" - Average rainfall in June:
2.95"
- Average rainfall in July:
3.94" - Average rainfall in August:
3.46" - Average rainfall in September:
2.64" - Average rainfall in October:
3.39" - Average rainfall in November:
2.52" - Average rainfall in December:
3.78"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days
Commack, NY
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
13.6 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
12 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Commack, NY
The month with the highest snowfall is March (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Commack, NY
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
3.2 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:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Commack, NY
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Commack, NY
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
17 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Commack, NY
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover
Commack, NY
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Commack, NY
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).





