| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 39.0 | 22.7 | 65 | -8 | 3.6 | 8.9 |
| February | 40.4 | 24.1 | 67 | -12 | 3.4 | 6.2 |
| March | 45.2 | 30.3 | 78 | -3 | 4.4 | 3.0 |
| April | 54.1 | 39.0 | 91 | 9 | 4.1 | 0.0 |
| May | 63.4 | 48.3 | 93 | 24 | 3.3 | 0.0 |
| June | 72.4 | 57.8 | 97 | 31 | 3.3 | 0.0 |
| July | 79.2 | 64.7 | 98 | 42 | 2.8 | 0.0 |
| August | 78.0 | 64.1 | 100 | 34 | 3.2 | 0.0 |
| September | 71.9 | 57.3 | 95 | 26 | 3.8 | 0.0 |
| October | 62.0 | 46.7 | 85 | 9 | 4.3 | 0.0 |
| November | 52.8 | 37.6 | 77 | 7 | 4.0 | 0.0 |
| December | 44.4 | 29.4 | 66 | -9 | 4.8 | 1.8 |
| Entire year | 59.0 | 43.9 | 100 | -12 | 45.4 | 19.9 |
|
More Hyannis Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 79 °F | July 29, 2023 |
| Lowest daily high | 5 °F | February 12, 1914 |
| Greatest daily range (Difference of high and low) |
51 °F | February 5, 2023 |
| Greatest difference in daily high over two conscutive days |
36 °F | Apr 29–30, 1990 |
| Most daily precipitation | 6.0 inches | September 4, 2010 |
| Most monthly precipitation | 14.1 inches | August 1946 |
| Most yearly precipitation | 59.9 inches | 2019 |
| Most yearly days with precipitation | 151 | 2008 |
| Earliest snow in season | October 28 | 1903 |
| Latest snow in season | April 22 | 1947 |
| Most daily snow | 24.0 inches | January 23, 2005 |
| Most monthly snow | 43.3 inches | January 2005 |
| Most yearly snow | 81.7 inches | 1904 |
| Most snow in a winter | 73.0 inches | 1903–1904 |
| Greatest snow accumulation | 28.0 inches | January 28, 2015 |
| Earliest freeze | September 22 | 1962 |
| Earliest day ≥ 70 °F | March 14 | 1990 |
| Earliest day ≥ 80 °F | April 14 | 2023 |
| Earliest day ≥ 90 °F | April 15 | 2023 |
| Latest freeze | June 4 | 1957 |
| Latest day ≥ 70 °F | November 28 | 2005 |
| Latest day ≥ 80 °F | October 23 | 1947 |
| Latest day ≥ 90 °F | September 22 | 1895 |
| Most days in a year < 0 °F | 7 | 1968 |
| Most days in a year < 32 °F | 134 | 1965 |
| Most days in a year ≥ 80 °F | 68 | 1959 |
| Most days in a year ≥ 90 °F | 12 | 1963 |
| Most days in a year ≥ 100 °F | 1 | 1948 |
|
Hyannis Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 12 days | Dec 30, 2002 – Jan 10, 2003 |
| Without precipitation | 38 days | May 26 – Jul 2, 1999 |
| With snow | 5 days | Feb 15–19, 2015 |
| High temperature at or below freezing |
15 days | Feb 6–20, 1979 |
| High temperature ≥ 80 °F | 22 days | Jun 29 – Jul 20, 2012 |
| High temperature ≥ 90 °F | 5 days | Jul 4–8, 2010 |
| Years | Station | Coordinates |
|---|---|---|
| 1893–2024 | Hyannis | location |