Climate and monthly weather forecastHyannis Port, MA
Climate and monthly weather forecast
Weather in January
January, like December, in Hyannis Port, Massachusetts, is another cold winter month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 38.3°F (3.5°C). January is the month when Hyannis Port experiences its coldest temperatures, averaging a high of 38.3°F (3.5°C) and a low of 30.4°F (-0.9°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Hyannis Port, Massachusetts, with an average temperature varying between 30.9°F (-0.6°C) and 38.8°F (3.8°C). Hyannis Port's average high-temperature in February is a still cold 38.8°F (3.8°C), indicating a subtle variation from January. Weather in February »Weather in March
The first month of the spring, March, is still a cold month in Hyannis Port, Massachusetts, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 41.5°F (5.3°C). The transition from February to March sees average high-temperatures adjusting to a still cold 41.5°F (5.3°C), from a not significantly different 38.8°F (3.8°C). Weather in March »Weather in April
April is a chilly spring month in Hyannis Port, Massachusetts, with an average temperature varying between 42.4°F (5.8°C) and 47.1°F (8.4°C). A soft shift in the average high-temperature is noticeable in April, transitioning from a wintry 41.5°F (5.3°C) in March to a chilly 47.1°F (8.4°C). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Hyannis Port, Massachusetts, with an average temperature fluctuating between 50.9°F (10.5°C) and 55.4°F (13°C). As Hyannis Port welcomes May, the average high-temperature sees a modest rise, transitioning from a chilly 47.1°F (8.4°C) in April to a refreshing 55.4°F (13°C). Weather in May »Weather in June
June, the first month of the summer in Hyannis Port, is a refreshing month, with an average temperature ranging between max 63.9°F (17.7°C) and min 59.4°F (15.2°C). Hyannis Port in June observes a minor temperature shift, with average high-temperatures adjusting from a refreshing 55.4°F (13°C) in May to a comfortable 63.9°F (17.7°C). Weather in June »Weather in July
July in Hyannis Port, Massachusetts, is a pleasant summer month, with an average temperature ranging between max 72°F (22.2°C) and min 67.6°F (19.8°C). As July begins, there's a slight increase in the average high-temperature, moving from a refreshing 63.9°F (17.7°C) in June to an agreeable 72°F (22.2°C). Weather in July »Weather in August
August, the last month of the summer in Hyannis Port, is another pleasant month, with an average temperature ranging between min 68.2°F (20.1°C) and max 72.5°F (22.5°C). The warmest month is August, with an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 68.2°F (20.1°C). Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Hyannis Port, Massachusetts, with an average temperature fluctuating between 67.3°F (19.6°C) and 62.8°F (17.1°C). September's onset brings an average high-temperature of a refreshing 67.3°F (19.6°C), showing a minute difference from August's 72.5°F (22.5°C). Weather in September »Weather in October
October, the same as September, in Hyannis Port, Massachusetts, is a moderate autumn month, with an average temperature varying between 54.5°F (12.5°C) and 59.9°F (15.5°C). With the onset of October, Hyannis Port's average high-temperature slightly adjusts, moderately receding from September's enjoyable 67.3°F (19.6°C) to a moderate 59.9°F (15.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Hyannis Port, Massachusetts, with temperature in the range of an average high of 51.3°F (10.7°C) and an average low of 45°F (7.2°C). Hyannis Port's November weather features a light decline in high-temperatures, reducing from a moderate 59.9°F (15.5°C) in October to a fresh 51.3°F (10.7°C). Weather in November »Weather in December
December, the first month of the winter in Hyannis Port, is also a frosty month, with an average temperature fluctuating between 36.5°F (2.5°C) and 43.7°F (6.5°C). The transition into December involves a small decrease in the average high-temperature, dipping slightly from a fresh 51.3°F (10.7°C) in November to a frosty 43.7°F (6.5°C). Weather in December »Updated: Jun 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
Hyannis Port's January weather, with an average high temperature of 38.3°F (3.5°C) and an average low temperature of 30.4°F (-0.9°C), tends to be the coldest of the year.
In Hyannis Port, during the entire year, the rain falls for 157.2 days and collects up to 31.77" (807mm) of precipitation.
Months with snowfall are January through April and December.
Throughout the year, there are 24.1 snowfall days, and 6.1" (155mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
March is the month with the most snowfall. Snow falls for 5.2 days and accumulates 1.93" (49mm) 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.
In Hyannis Port, snow does not fall in May through November.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The most humid month is July, with an average relative humidity of 84%.
July and August, with an average maximum UV index of 6, are months with the highest UV index.
Hyannis Port notes the warmest temperatures in August, with a average high of 72.5°F (22.5°C) and a low of 68.2°F (20.1°C).
The month with the least rainfall in Hyannis Port is August, when the rain falls for 12.4 days and typically collects 1.73" (44mm) of precipitation.
August has the most sunshine of the year in Hyannis Port, with an average of 10.8h of sunshine.
The month with the most rainfall is October, when the rain falls for 14.5 days and typically aggregates up to 3.7" (94mm) of precipitation.
The least humid month is November, with an average relative humidity of 74%.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
The month with the least sunshine is December, with an average of 4.6h of sunshine.
Average temperature
Hyannis Port, MA
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure
Hyannis Port, MA
- Average pressure in January:
30"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.02"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:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Hyannis Port, MA
- Average wind speed in January:
16.5mph - Average wind speed in February:
16mph - Average wind speed in March:
16.2mph - Average wind speed in April:
14.1mph - Average wind speed in May:
12.2mph - Average wind speed in June:
11.4mph
- Average wind speed in July:
10.7mph - Average wind speed in August:
10.6mph - Average wind speed in September:
12.6mph - Average wind speed in October:
14.5mph - Average wind speed in November:
15.7mph - Average wind speed in December:
16.1mph
The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).
Average humidity
Hyannis Port, MA
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall
Hyannis Port, MA
- Average rainfall in January:
2.87" - Average rainfall in February:
2.68" - Average rainfall in March:
3.19" - Average rainfall in April:
3.03" - Average rainfall in May:
2.2" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.73" - Average rainfall in September:
1.93" - Average rainfall in October:
3.7" - Average rainfall in November:
2.52" - Average rainfall in December:
3.62"
The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").
Average rainfall days
Hyannis Port, MA
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
12.9 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.4 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
12.1 days - Average rainfall days in December:
14.2 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall
Hyannis Port, MA
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days
Hyannis Port, MA
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.6 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:
0.4 days - Average snowfall days in December:
4.4 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Hyannis Port, MA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - 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 12min
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 12min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 42min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 48min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days
Hyannis Port, MA
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
11.4 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
15.1 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
17.7 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
15 days - Average sunshine days in December:
12.6 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).
Average UV index
Hyannis Port, MA
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Hyannis Port, MA
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Hyannis Port, MA
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).
