Climate and monthly weather forecastMuttontown, NY
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Muttontown, New York, with an average temperature fluctuating between 28.8°F (-1.8°C) and 37.4°F (3°C). January is the month when Muttontown sees the lowest average temperatures, with a high of 37.4°F (3°C) and a low of 28.8°F (-1.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Muttontown, New York, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 30.2°F (-1°C). February's average high-temperature is a still icy 39.4°F (4.1°C), maintaining a close comparison with January's 37.4°F (3°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Muttontown, New York, with an average temperature ranging between min 36°F (2.2°C) and max 44.6°F (7°C). Entering March, the average high-temperature is recorded at a chilly 44.6°F (7°C), exhibiting a minimal shift from February's 39.4°F (4.1°C). Weather in March »Weather in April
April is a cool spring month in Muttontown, New York, with an average temperature ranging between min 44.8°F (7.1°C) and max 53.8°F (12.1°C). In Muttontown, stepping into April brings a temperature increase, moving up from March's chilly 44.6°F (7°C) to a cool 53.8°F (12.1°C). Weather in April »Weather in May
May, the last month of the spring in Muttontown, is a comfortable month, with an average temperature fluctuating between 54.3°F (12.4°C) and 63.7°F (17.6°C). The arrival of May brings a change in Muttontown's weather, with average high-temperatures moving from April's fresh 53.8°F (12.1°C) to a comfortable 63.7°F (17.6°C). Weather in May »Weather in June
June, the first month of the summer in Muttontown, is an agreeable month, with an average temperature fluctuating between 72.7°F (22.6°C) and 63.9°F (17.7°C). In Muttontown, stepping into June brings a temperature increase, moving up from May's comfortable 63.7°F (17.6°C) to an agreeable 72.7°F (22.6°C). Weather in June »Weather in July
July in Muttontown, New York, is a warm summer month, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 80.1°F (26.7°C). July stands out as Muttontown's warmest month, with temperatures ranging between an average high of 80.1°F (26.7°C) and a low of 71.2°F (21.8°C). Weather in July »Weather in August
August, the last month of the summer in Muttontown, is another warm month, with an average temperature fluctuating between 79.2°F (26.2°C) and 71.2°F (21.8°C). August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 79.2°F (26.2°C) from July's 80.1°F (26.7°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Muttontown, New York, with an average temperature varying between 72.5°F (22.5°C) and 64.8°F (18.2°C). As Muttontown enters September, the average high-temperature subtly lowers from the a warm 79.2°F (26.2°C) of August to an agreeable 72.5°F (22.5°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Muttontown, New York, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 54.5°F (12.5°C). Start of October brings a shift in the average high-temperature, falling from September's pleasant 72.5°F (22.5°C) 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 Muttontown, New York, with temperature in the range of an average high of 51.4°F (10.8°C) and an average low of 43.7°F (6.5°C). November's arrival correlates with a reduction in the average high-temperature, down from a refreshing 62.4°F (16.9°C) in October to a fresh 51.4°F (10.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Muttontown, New York, with an average temperature ranging between min 35.8°F (2.1°C) and max 43.3°F (6.3°C). Muttontown records a mild change in average high-temperature during December, easing from a cool 51.4°F (10.8°C) in November to a chilly 43.3°F (6.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Muttontown, NY
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37.4°F).
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure
Muttontown, 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:
30.07"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
Muttontown, NY
- Average wind speed in January:
12.5mph - Average wind speed in February:
12.1mph - Average wind speed in March:
11.8mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.3mph - Average wind speed in September:
9.4mph - Average wind speed in October:
11.2mph - Average wind speed in November:
11.7mph - Average wind speed in December:
12.1mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity
Muttontown, NY
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Muttontown, NY
- Average rainfall in January:
0.51" - Average rainfall in February:
0.43" - Average rainfall in March:
0.47" - Average rainfall in April:
0.75" - Average rainfall in May:
0.75" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.87" - Average rainfall in August:
0.71" - Average rainfall in September:
0.35" - Average rainfall in October:
0.79" - Average rainfall in November:
0.75" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days
Muttontown, NY
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
10 days - Average rainfall days in June:
8.8 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is July (11.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall
Muttontown, NY
The month with the highest snowfall is March (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Muttontown, NY
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
4 days - Average snowfall days in March:
2.9 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:
0.1 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
2.8 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Muttontown, 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 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 48min - 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 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
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 42min).
Average sunshine days
Muttontown, NY
- Average sunshine days in January:
22.4 days - Average sunshine days in February:
19.3 days - Average sunshine days in March:
20.2 days - Average sunshine days in April:
17.8 days - Average sunshine days in May:
18.2 days - Average sunshine days in June:
19.2 days
- Average sunshine days in July:
16.9 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
22 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is July (16.9 days).
Average UV index
Muttontown, 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
Muttontown, NY
The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Muttontown, 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).





