Climate and monthly weather forecastYaphank, NY
Climate and monthly weather forecast
Weather in January
January, like December, in Yaphank, New York, is an icy winter month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 38.7°F (3.7°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 38.7°F (3.7°C) and a low of 30.6°F (-0.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Yaphank, New York, with an average temperature varying between 39.6°F (4.2°C) and 31.5°F (-0.3°C). Yaphank notes an average high-temperature of a still icy 39.6°F (4.2°C) in February, displaying minor variation from January. Weather in February »Weather in March
March, the first month of the spring in Yaphank, is a frosty month, with temperature in the range of an average low of 36.3°F (2.4°C) and an average high of 43.3°F (6.3°C). Entering March, the average high-temperature is recorded at a chilly 43.3°F (6.3°C), exhibiting a minimal shift from February's 39.6°F (4.2°C). Weather in March »Weather in April
April in Yaphank, New York, is a cool spring month, with an average temperature fluctuating between 44.6°F (7°C) and 51.4°F (10.8°C). April's arrival is noted with a slight increase in the average high-temperature, moving from a chilly 43.3°F (6.3°C) in March to a cool 51.4°F (10.8°C). Weather in April »Weather in May
May, the last month of the spring in Yaphank, is a moderate month, with an average temperature fluctuating between 54.1°F (12.3°C) and 60.4°F (15.8°C). In Yaphank, the average high-temperature in May rises, from a fresh 51.4°F (10.8°C) in April, to a moderate 60.4°F (15.8°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Yaphank, New York, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 69.3°F (20.7°C). June's onset is marked by a subtle temperature increase, moving from a moderate 60.4°F (15.8°C) in May to a pleasant 69.3°F (20.7°C). Weather in June »Weather in July
July is a moderately hot summer month in Yaphank, New York, with an average temperature fluctuating between 71.4°F (21.9°C) and 76.8°F (24.9°C). Yaphank's transition into July is marked by a minor temperature shift, moving from an agreeable 69.3°F (20.7°C) in June to a moderately hot 76.8°F (24.9°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Yaphank, New York, with an average temperature varying between 77.5°F (25.3°C) and 71.4°F (21.9°C). Yaphank experiences its highest temperatures in August, with an average peak of 77.5°F (25.3°C) and a low of 71.4°F (21.9°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Yaphank, New York, with an average temperature fluctuating between 65.3°F (18.5°C) and 71.4°F (21.9°C). With the arrival of September, Yaphank experiences a modest decline in average high-temperatures, transitioning from a warm 77.5°F (25.3°C) in August to an agreeable 71.4°F (21.9°C). Weather in September »Weather in October
October, like September, in Yaphank, New York, is another refreshing autumn month, with an average temperature ranging between min 55.9°F (13.3°C) and max 62.6°F (17°C). The onset of October entails a subtle temperature shift, as the average high-temperature eases from an agreeable 71.4°F (21.9°C) in September to a refreshing 62.6°F (17°C). Weather in October »Weather in November
November, the last month of the autumn in Yaphank, is another cool month, with an average temperature ranging between min 45.5°F (7.5°C) and max 52.5°F (11.4°C). A shift in Yaphank's weather is observed as October turns into November, with the average high temperature reducing from a comfortable 62.6°F (17°C) to a fresh 52.5°F (11.4°C). Weather in November »Weather in December
December, the first month of the winter in Yaphank, is still a chilly month, with temperature in the range of an average high of 44.8°F (7.1°C) and an average low of 37°F (2.8°C). A modest decline in the average high-temperature is seen during December, decreasing from a cool 52.5°F (11.4°C) in November to a chilly 44.8°F (7.1°C). Weather in December »Updated: Aug 28, 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, noted for its average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 30.6°F (-0.8°C), is considered the coldest month.
The months with the least rainfall are January, February and September Rain falls for 10.1 days and accumulates 2.01" (51mm) of rain.
In Yaphank, during the entire year, the rain falls for 156.2 days and collects up to 30.2" (767mm) of precipitation.
January through April, November and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 5.3 days and accumulates 1.5" (38mm) of snow.
In Yaphank, during the entire year, snow falls for 17.9 days and aggregates up to 4.57" (116mm) of snow.
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the least sunshine in Yaphank is February, with an average of 4.8h of sunshine.
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.
With an average relative humidity of 80%, May is the most humid month.
In Yaphank, snow does not fall in May through October.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July and August, with an average of 10.8h of sunshine, are months with the most sunshine.
The highest temperatures are recorded in August, with averages reaching a high of 77.5°F (25.3°C) and a low of 71.4°F (21.9°C).
The least humid month is November, with an average relative humidity of 71%.
The month with the most rainfall is December, when the rain falls for 12.8 days and typically aggregates up to 3.31" (84mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Yaphank, NY
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure
Yaphank, NY
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.02"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:
30.09"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
Yaphank, NY
- Average wind speed in January:
14.5mph - Average wind speed in February:
13.9mph - Average wind speed in March:
13.7mph - Average wind speed in April:
12.6mph - Average wind speed in May:
10.7mph - Average wind speed in June:
9.8mph
- Average wind speed in July:
9.6mph - Average wind speed in August:
9.6mph - Average wind speed in September:
11.1mph - Average wind speed in October:
13mph - Average wind speed in November:
13.7mph - Average wind speed in December:
14mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).
Average humidity
Yaphank, NY
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Yaphank, NY
- Average rainfall in January:
2.01" - Average rainfall in February:
2.01" - Average rainfall in March:
2.64" - Average rainfall in April:
2.52" - Average rainfall in May:
2.4" - Average rainfall in June:
2.28"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.68" - Average rainfall in September:
2.01" - Average rainfall in October:
3.15" - Average rainfall in November:
2.32" - Average rainfall in December:
3.31"
The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").
Average rainfall days
Yaphank, NY
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
9 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
15 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).
Average snowfall
Yaphank, NY
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Yaphank, NY
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
2.9 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:
0.6 days - Average snowfall days in December:
3.4 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Yaphank, 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 6min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 42min - 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 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Yaphank, NY
- Average sunshine days in January:
15.6 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
13.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).
Average UV index
Yaphank, 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
Yaphank, NY
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
Yaphank, 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).
