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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, is an icy winter month in Islip Terrace, New York, with an average temperature ranging between max 37.9°F (3.3°C) and min 30°F (-1.1°C). January, recording an average high temperature of 37.9°F (3.3°C) and a low temperature of 30°F (-1.1°C), is Islip Terrace's coldest month. Weather in January »
Weather in February
February, the last month of the winter in Islip Terrace, is another cold month, with an average temperature fluctuating between 39.7°F (4.3°C) and 31.1°F (-0.5°C). The transition into February marks the average high-temperature at a still icy 39.7°F (4.3°C), differing minimally from January's 37.9°F (3.3°C). Weather in February »
Weather in March
March, the first month of the spring in Islip Terrace, is a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 36.1°F (2.3°C). The average high-temperature during March registers at a frosty 44.2°F (6.8°C), maintaining a close resemblance to the previous month. Weather in March »
Weather in April
April in Islip Terrace, New York, is a cool spring month, with an average temperature varying between 45.1°F (7.3°C) and 52.9°F (11.6°C). Islip Terrace's April weather indicates a minor ascent in high-temperatures, adjusting from a frosty 44.2°F (6.8°C) in March to a cool 52.9°F (11.6°C). Weather in April »
Weather in May
May, the last month of the spring in Islip Terrace, is an enjoyable month, with an average temperature ranging between max 62.2°F (16.8°C) and min 54.5°F (12.5°C). The average high-temperature increases in May, moving from a fresh 52.9°F (11.6°C) in April to an enjoyable 62.2°F (16.8°C). Weather in May »
Weather in June
June, the first month of the summer in Islip Terrace, is a pleasant month, with an average temperature ranging between max 71.4°F (21.9°C) and min 63.9°F (17.7°C). The shift from May to June is marked by an increase in the average high-temperature, moving from a comfortable 62.2°F (16.8°C) to an agreeable 71.4°F (21.9°C). Weather in June »
Weather in July
July is a moderately hot summer month in Islip Terrace, New York, with an average temperature fluctuating between 79°F (26.1°C) and 71.8°F (22.1°C). In Islip Terrace, July is the month with the highest recorded average temperatures, measuring a high of 79°F (26.1°C) and a low of 71.8°F (22.1°C). Weather in July »
Weather in August
August, the last month of the summer in Islip Terrace, is also a moderately hot month, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 72°F (22.2°C). Islip Terrace experiences a subtle adjustment in high-temperatures to a still moderately hot 78.4°F (25.8°C) with the onset of August, maintaining near parity with July's 79°F (26.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Islip Terrace, is also an agreeable month, with an average temperature ranging between min 65.3°F (18.5°C) and max 72.1°F (22.3°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 78.4°F (25.8°C) to an agreeable 72.1°F (22.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Islip Terrace, New York, with an average temperature fluctuating between 55.8°F (13.2°C) and 62.4°F (16.9°C). Islip Terrace's progression into October involves a drop in the average high-temperature, receding from a pleasant 72.1°F (22.3°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Islip Terrace, is also a fresh month, with an average temperature fluctuating between 52°F (11.1°C) and 44.2°F (6.8°C). With November's arrival, Islip Terrace's weather changes as the average high-temperature falls from an enjoyable 62.4°F (16.9°C) in October to a fresh 52°F (11.1°C). Weather in November »
Weather in December
December, the first month of the winter in Islip Terrace, is also a frosty month, with an average temperature varying between 43.9°F (6.6°C) and 36.9°F (2.7°C). In Islip Terrace, entering December brings a subtle temperature decrement, reducing from November's cool 52°F (11.1°C) to a chilly 43.9°F (6.6°C). Weather in December »
Updated: Feb 13, 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 month is the coldest in Islip Terrace?
Islip Terrace's coldest temperatures are experienced in January, with average high temperatures of 37.9°F (3.3°C) and lows of 30°F (-1.1°C).
What is the driest month in Islip Terrace?
January is the month with the least rainfall. Rain falls for 7.6 days and accumulates 2.05" (52mm) of precipitation.
How many days does it rain in Islip Terrace?
Throughout the year, in Islip Terrace, New York, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.
When does it snow in Islip Terrace?
Months with snowfall are January through March, October through December.
How many days does it snow in Islip Terrace?
In Islip Terrace, New York, during the entire year, snow falls for 13 days and aggregates up to 5.87" (149mm) of snow.
What are the months with the lowest UV index in Islip Terrace?
The months with the lowest UV index in Islip Terrace, New York, are January through March and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Islip Terrace?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
What is the snowiest month in Islip Terrace?
The month with the most snowfall in Islip Terrace, New York, is March, when snow falls for 2.6 days and typically aggregates up to 1.97" (50mm) of snow.
When is Daylight Saving Time (DST) in Islip Terrace?
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 Islip Terrace?
April through September are months without snowfall.
What are the most humid months in Islip Terrace?
May and June, with an average relative humidity of 77%, are most humid months in Islip Terrace.
When are the longest days in Islip Terrace?
June has the longest days of the year in Islip Terrace, with an average of 15h and 0min of daylight.
What is the month with the highest UV index in Islip Terrace?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What time of the year is the hottest in Islip Terrace?
The month of July, characterized by an average high of 79°F (26.1°C) and a low of 71.8°F (22.1°C), is recognized as the warmest in Islip Terrace, New York.
What is the rainiest month in Islip Terrace?
July is the month with the most rainfall in Islip Terrace, New York. Rain falls for 17.9 days and accumulates 3.86" (98mm) of precipitation.
What month has the most sunshine in Islip Terrace?
July has the most sunshine of the year in Islip Terrace, New York, with an average of 10.8h of sunshine.
What is the least humid month in Islip Terrace?
With an average relative humidity of 71%, November is the least humid month.
What is the month with the shortest days in Islip Terrace?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Islip Terrace, NY
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure
Islip Terrace, 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:
29.96"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
Islip Terrace, NY
- Average wind speed in January:
13.4mph - Average wind speed in February:
12.9mph - Average wind speed in March:
12.5mph - Average wind speed in April:
11.5mph - Average wind speed in May:
9.8mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.6mph - Average wind speed in August:
8.8mph - Average wind speed in September:
10.1mph - Average wind speed in October:
11.9mph - Average wind speed in November:
12.6mph - Average wind speed in December:
12.9mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity
Islip Terrace, NY
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Islip Terrace, NY
- Average rainfall in January:
2.05" - Average rainfall in February:
2.17" - Average rainfall in March:
2.56" - Average rainfall in April:
2.83" - Average rainfall in May:
2.95" - Average rainfall in June:
2.91"
- Average rainfall in July:
3.86" - Average rainfall in August:
3.35" - Average rainfall in September:
2.56" - Average rainfall in October:
3.23" - Average rainfall in November:
2.4" - Average rainfall in December:
3.58"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Islip Terrace, NY
- Average rainfall days in January:
7.6 days - Average rainfall days in February:
8.5 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
11.6 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall
Islip Terrace, NY
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days
Islip Terrace, NY
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
2.6 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:
1.7 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Islip Terrace, NY
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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
Islip Terrace, NY
- Average sunshine days in January:
19.4 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17.4 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index
Islip Terrace, 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
Islip Terrace, NY
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Islip Terrace, 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).
Islip Terrace, New York, USA
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