Climate and monthly weather forecastLake Success, NY
Climate and monthly weather forecast
Weather in January
January, like December, in Lake Success, New York, is an icy winter month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 36.9°F (2.7°C). With its high average temperature of 36.9°F (2.7°C) and a low of 27.7°F (-2.4°C), January is regarded as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Lake Success, is also a wintry month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 28.9°F (-1.7°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still cold 39.2°F (4°C) from January's 36.9°F (2.7°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Lake Success, New York, with an average temperature varying between 45.3°F (7.4°C) and 35.2°F (1.8°C). March's arrival sees a mild rise in the average high-temperature, transitioning from February's icy 39.2°F (4°C) to a frosty 45.3°F (7.4°C). Weather in March »Weather in April
April in Lake Success, New York, is a moderate spring month, with an average temperature fluctuating between 55.9°F (13.3°C) and 44.6°F (7°C). Lake Success's transition into April sees a rise in the average high-temperature, advancing from a frosty 45.3°F (7.4°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Lake Success, New York, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 65.8°F (18.8°C). May's onset brings a rise in the average high-temperature, moving from 55.9°F (13.3°C) in April to a still refreshing 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Lake Success, is a moderately hot month, with an average temperature fluctuating between 63.1°F (17.3°C) and 74.8°F (23.8°C). The onset of June brings a rise in the average high-temperature, elevating from a comfortable 65.8°F (18.8°C) in May to a warm 74.8°F (23.8°C). Weather in June »Weather in July
July, like June, in Lake Success, New York, is another warm summer month, with an average temperature ranging between min 70.3°F (21.3°C) and max 81.9°F (27.7°C). Lake Success's warmest temperatures are experienced in July, with average high temperatures of 81.9°F (27.7°C) and lows of 70.3°F (21.3°C). The heat index value during July is evaluated at a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Lake Success, is also a moderately hot month, with an average temperature varying between 80.6°F (27°C) and 70.2°F (21.2°C). The commencement of August records an average high-temperature of a still moderately hot 80.6°F (27°C), barely varying from July's 81.9°F (27.7°C). Weather in August »Weather in September
September, the first month of the autumn in Lake Success, is still a warm month, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 63.5°F (17.5°C). The arrival of September corresponds with a light shift in temperature, down from 80.6°F (27°C) in August to a still moderately hot 73.8°F (23.2°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Lake Success, New York, with an average temperature ranging between min 53.4°F (11.9°C) and max 63°F (17.2°C). A shift in Lake Success's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 73.8°F (23.2°C) to an enjoyable 63°F (17.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Lake Success, New York, with an average temperature varying between 42.3°F (5.7°C) and 51.8°F (11°C). In Lake Success, the average high-temperature in November decreases from an enjoyable 63°F (17.2°C) in October to a fresh 51.8°F (11°C). Weather in November »Weather in December
December, the first month of the winter in Lake Success, is also an icy month, with an average temperature fluctuating between 34.5°F (1.4°C) and 42.4°F (5.8°C). Transition into December marks a drop in the average high-temperature, moving from a cool 51.8°F (11°C) in November to a wintry 42.4°F (5.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Lake Success, NY
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36.9°F).
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure
Lake Success, NY
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.03"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:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Lake Success, NY
- Average wind speed in January:
11.2mph - Average wind speed in February:
10.9mph - Average wind speed in March:
10.7mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.5mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity
Lake Success, NY
The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).
Average rainfall
Lake Success, NY
- Average rainfall in January:
2.05" - Average rainfall in February:
2.09" - Average rainfall in March:
2.56" - Average rainfall in April:
2.8" - Average rainfall in May:
3.07" - Average rainfall in June:
3.07"
The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Lake Success, NY
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Lake Success, NY
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Lake Success, NY
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.3 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:
0.4 days - Average snowfall days in December:
3 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lake Success, 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 42min - 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 0min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 0min
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
Lake Success, NY
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17.3 days
The months with the most sunshine days are January and November (19.7 days).
The month with the least sunshine days is July (11 days).
Average UV index
Lake Success, 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, November and December (UV index 2).
Average cloud cover
Lake Success, NY
The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Lake Success, 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).





