Expand
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, in West Islip, New York, is an icy winter month, with an average temperature ranging between min 30.4°F (-0.9°C) and max 37.9°F (3.3°C). West Islip's coldest weather arrives in January, when temperatures average a high of 37.9°F (3.3°C) and a low of 30.4°F (-0.9°C). Weather in January »
Weather in February
February, the last month of the winter in West Islip, is also an icy month, with an average temperature varying between 31.1°F (-0.5°C) and 39.7°F (4.3°C). West Islip sees the arrival of February with an average high-temperature of a still icy 39.7°F (4.3°C), indicating a subtle variation from January. Weather in February »
Weather in March
March, the first month of the spring in West Islip, is a chilly month, with an average temperature fluctuating between 36.9°F (2.7°C) and 44.2°F (6.8°C). At the start of March, West Islip's average high-temperature reaches a frosty 44.2°F (6.8°C), subtly different from the preceding month. Weather in March »
Weather in April
April is a cool spring month in West Islip, New York, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 45.1°F (7.3°C). A subtle rise in the average high-temperature is observed during April, adjusting from a frosty 44.2°F (6.8°C) in March to a fresh 52.9°F (11.6°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in West Islip, New York, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 62.2°F (16.8°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a cool 52.9°F (11.6°C) to a comfortable 62.2°F (16.8°C). Weather in May »
Weather in June
June, the first month of the summer in West Islip, is an agreeable month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 71.2°F (21.8°C). With the transition into June, West Islip experiences an increase in average high-temperatures, moving up from an enjoyable 62.2°F (16.8°C) in May to an agreeable 71.2°F (21.8°C). Weather in June »
Weather in July
July is a warm summer month in West Islip, New York, with an average temperature ranging between min 72°F (22.2°C) and max 79°F (26.1°C). July, characterized by an average high temperature of 79°F (26.1°C) and a low temperature of 72°F (22.2°C), is generally the warmest month. Weather in July »
Weather in August
August, the last month of the summer in West Islip, is another warm month, with an average temperature ranging between min 72°F (22.2°C) and max 78.4°F (25.8°C). August's beginning signals an average high-temperature of a still warm 78.4°F (25.8°C), barely different from July's 79°F (26.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in West Islip, New York, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 65.5°F (18.6°C). As September arrives, West Islip's weather displays a minor decrease in high-temperatures, transitioning from August's warm 78.4°F (25.8°C) to an agreeable 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, in West Islip, New York, is another enjoyable autumn month, with an average temperature ranging between min 55.8°F (13.2°C) and max 62.4°F (16.9°C). With October's onset, the average high-temperature recedes from September's pleasant 72.3°F (22.4°C) to a refreshing 62.4°F (16.9°C). Weather in October »
Weather in November
November, the last month of the autumn in West Islip, is also a fresh month, with an average temperature varying between 44.4°F (6.9°C) and 52.2°F (11.2°C). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a comfortable 62.4°F (16.9°C) in October to a fresh 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in West Islip, New York, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 36.9°F (2.7°C). A mild drop in West Islip's average high-temperature is observed in December, transitioning from a fresh 52.2°F (11.2°C) in November to a chilly 44.1°F (6.7°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 time of the year is the coldest in West Islip?
West Islip, New York, notes the coldest temperatures in January, with a average high of 37.9°F (3.3°C) and a low of 30.4°F (-0.9°C).
What is the driest month in West Islip?
The month with the least rainfall in West Islip, New York, is January, when the rain falls for 8.1 days and typically collects 2.2" (56mm) of precipitation.
How many days does it rain in West Islip?
Throughout the year, in West Islip, New York, there are 157 rainfall days, and 35.98" (914mm) of precipitation is accumulated.
When does it snow in West Islip?
January through April, October through December are months with snowfall.
How many days does it snow in West Islip?
In West Islip, New York, during the entire year, snow falls for 14.4 days and aggregates up to 6.06" (154mm) of snow.
When is the lowest UV index in West Islip?
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine in West Islip?
With an average of 4.8h of sunshine, February has the least sunshine of the year.
When does it snow the most in West Islip?
The month with the most snowfall in West Islip, New York, is March, when snow falls for 3.1 days and typically aggregates up to 2.17" (55mm) of snow.
When is Daylight Saving Time (DST) in West Islip?
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.
What is the most humid month in West Islip?
May is the most humid month, with an average relative humidity of 78%.
When it does not snow in West Islip?
In West Islip, snow does not fall in May through September.
When are the longest days in West Islip?
June has the longest days of the year in West Islip, with an average of 15h and 0min of daylight.
What is the month with the highest UV index in West Islip?
June through August, with an average maximum UV index of 6, are months with the highest UV index in West Islip.
What is the warmest month in West Islip?
July proves to be the warmest month in West Islip, New York, recording an average peak temperature of 79°F (26.1°C) and a minimum temperature of 72°F (22.2°C).
What is the wettest month in West Islip?
July is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.98" (101mm) of precipitation.
What month has the most sunshine in West Islip?
The month with the most sunshine is July, with an average of 10.8h of sunshine.
What is the least humid month in West Islip?
With an average relative humidity of 71%, November is the least humid month in West Islip.
What is the month with the shortest days in West Islip?
With an average of 9h and 18min of daylight, December has the shortest days of the year in West Islip.
Average temperature
West Islip, 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 months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure
West Islip, NY
- Average pressure in January:
30.05"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:
30.01"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
West Islip, NY
- Average wind speed in January:
13.6mph - Average wind speed in February:
13.1mph - Average wind speed in March:
12.7mph - Average wind speed in April:
11.7mph - Average wind speed in May:
10mph - Average wind speed in June:
9.2mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
9mph - Average wind speed in September:
10.3mph - Average wind speed in October:
12.1mph - Average wind speed in November:
12.7mph - Average wind speed in December:
13.1mph
The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity
West Islip, NY
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall
West Islip, NY
- Average rainfall in January:
2.2" - Average rainfall in February:
2.28" - Average rainfall in March:
2.72" - Average rainfall in April:
3.03" - Average rainfall in May:
3.11" - Average rainfall in June:
2.99"
- Average rainfall in July:
3.98" - Average rainfall in August:
3.58" - Average rainfall in September:
2.56" - Average rainfall in October:
3.35" - Average rainfall in November:
2.4" - Average rainfall in December:
3.78"
The wettest month (with the highest rainfall) is July (3.98").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days
West Islip, NY
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
9 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall
West Islip, NY
The month with the highest snowfall is March (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
West Islip, NY
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
3.1 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:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.4 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
West Islip, 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 4min - 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:
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
West Islip, NY
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
16.4 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
West Islip, 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
West Islip, 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
West Islip, 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).
West Islip, New York, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location