Climate and monthly weather forecastShelter Island Heights, NY
Climate and monthly weather forecast
Weather in January
January, like December, in Shelter Island Heights, New York, is an icy winter month, with an average temperature varying between 38.8°F (3.8°C) and 31.3°F (-0.4°C). January, recording an average high temperature of 38.8°F (3.8°C) and a low temperature of 31.3°F (-0.4°C), is Shelter Island Heights's coldest month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Shelter Island Heights, New York, with an average temperature ranging between max 39.6°F (4.2°C) and min 31.5°F (-0.3°C). With the onset of February, the average high-temperature registers at a still cold 39.6°F (4.2°C), subtly different from January's 38.8°F (3.8°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Shelter Island Heights, New York, with an average temperature fluctuating between 36.1°F (2.3°C) and 43°F (6.1°C). Shelter Island Heights's transition from February to March introduces an average high-temperature of a chilly 43°F (6.1°C), marking an insignificant variation from the 39.6°F (4.2°C). Weather in March »Weather in April
April is a cool spring month in Shelter Island Heights, New York, with an average temperature varying between 50°F (10°C) and 44.2°F (6.8°C). April's onset is marked by a subtle temperature increase, moving from a chilly 43°F (6.1°C) in March to a fresh 50°F (10°C). Weather in April »Weather in May
May, the last month of the spring in Shelter Island Heights, is a mild month, with an average temperature varying between 52.7°F (11.5°C) and 58.6°F (14.8°C). Shelter Island Heights experiences a minor temperature shift with the start of May, with average high-temperatures moving from a fresh 50°F (10°C) in April to a refreshing 58.6°F (14.8°C). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Shelter Island Heights, New York, with an average temperature fluctuating between 67.6°F (19.8°C) and 62.6°F (17°C). The average high-temperature increases in June, moving from a mild 58.6°F (14.8°C) in May to a still refreshing 67.6°F (19.8°C). Weather in June »Weather in July
July in Shelter Island Heights, New York, is a warm summer month, with an average temperature fluctuating between 75.7°F (24.3°C) and 70.3°F (21.3°C). July witnesses a minor rise in the average high-temperature, transitioning from a refreshing 67.6°F (19.8°C) in June to a moderately hot 75.7°F (24.3°C). Weather in July »Weather in August
August, the last month of the summer in Shelter Island Heights, is another warm month, with an average temperature ranging between min 71.2°F (21.8°C) and max 75.9°F (24.4°C). In Shelter Island Heights, New York, temperatures reach their average annual highs in August, measuring 75.9°F (24.4°C) and a minimum average of 71.2°F (21.8°C). Weather in August »Weather in September
September, the first month of the autumn in Shelter Island Heights, is also an agreeable month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 65.1°F (18.4°C). Entering September, the average high-temperature is recorded at an agreeable 70.7°F (21.5°C), exhibiting a minimal shift from August's 75.9°F (24.4°C). Weather in September »Weather in October
October, like September, in Shelter Island Heights, New York, is another refreshing autumn month, with an average temperature fluctuating between 56.3°F (13.5°C) and 62.4°F (16.9°C). October brings a slight decrease in temperature, down from a pleasant 70.7°F (21.5°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Shelter Island Heights, New York, with an average temperature varying between 45.5°F (7.5°C) and 52.7°F (11.5°C). During the transition into November, Shelter Island Heights observes a decrease in the average high-temperature, falling from a comfortable 62.4°F (16.9°C) in October to a fresh 52.7°F (11.5°C). Weather in November »Weather in December
December, the first month of the winter in Shelter Island Heights, is also a frosty month, with an average temperature varying between 45°F (7.2°C) and 37.9°F (3.3°C). In December, the average high-temperature marginally decreases from a cool 52.7°F (11.5°C) in November to a frosty 45°F (7.2°C). Weather in December »Updated: Aug 4, 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
January, having an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.3°F (-0.4°C), is the coldest month.
In Shelter Island Heights, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.
January through March, November and December are months with snowfall.
In Shelter Island Heights, during the entire year, snow falls for 13.9 days and aggregates up to 6.61" (168mm) of snow.
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.
With an average ocean temperature of 38.8°F (3.8°C), February is the month with the coldest seawater.
March is the month with the most snowfall. Snow falls for 3 days and accumulates 2.36" (60mm) of snow.
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.
April through October are months without snowfall.
The months with the highest humidity are May and June, with an average relative humidity of 81%.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The months with the highest UV index in Shelter Island Heights are June through August, with an average maximum UV index of 6.
The months with the most sunshine are July and August, with an average of 10.6h of sunshine.
August is the warmest month, exhibiting average temperatures of 75.9°F (24.4°C) at the peak and 71.2°F (21.8°C) at the base.
The month with the warmest seawater is August, with an average ocean temperature of 72.1°F (22.3°C).
The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 2.17" (55mm) of precipitation.
November is the least humid month, with an average relative humidity of 72%.
The month with the most rainfall in Shelter Island Heights is December, when the rain falls for 12.8 days and typically aggregates up to 3.82" (97mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
The month with the least sunshine in Shelter Island Heights is December, with an average of 4.6h of sunshine.
Average temperature
Shelter Island Heights, NY
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure
Shelter Island Heights, NY
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"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:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Shelter Island Heights, NY
- Average wind speed in January:
16mph - Average wind speed in February:
15.2mph - Average wind speed in March:
15.2mph - Average wind speed in April:
13.8mph - Average wind speed in May:
12mph - Average wind speed in June:
10.8mph
- Average wind speed in July:
10.4mph - Average wind speed in August:
10.6mph - Average wind speed in September:
12.4mph - Average wind speed in October:
14.5mph - Average wind speed in November:
15.3mph - Average wind speed in December:
15.7mph
The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).
Average humidity
Shelter Island Heights, NY
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall
Shelter Island Heights, NY
- Average rainfall in January:
2.56" - Average rainfall in February:
2.56" - Average rainfall in March:
3.19" - Average rainfall in April:
2.99" - Average rainfall in May:
2.91" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.99" - Average rainfall in August:
2.76" - Average rainfall in September:
2.17" - Average rainfall in October:
3.5" - Average rainfall in November:
2.76" - Average rainfall in December:
3.82"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days
Shelter Island Heights, NY
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
14.9 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Shelter Island Heights, NY
The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Shelter Island Heights, NY
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.2 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:
0.2 days - Average snowfall days in December:
2.3 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Shelter Island Heights, NY
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight / Average sunshine
Shelter Island Heights, 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:
4h and 54min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 36min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days
Shelter Island Heights, NY
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
14.7 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
15.3 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
13.7 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index
Shelter Island Heights, 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
Shelter Island Heights, NY
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Shelter Island Heights, 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).
