| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 38.4 | 21.0 | 69 | -19 | 3.8 |
| February | 40.0 | 21.7 | 71 | -15 | 3.2 |
| March | 46.1 | 28.0 | 87 | -5 | 5.0 |
| April | 56.5 | 36.5 | 92 | 13 | 4.4 |
| May | 66.8 | 46.5 | 95 | 25 | 3.5 |
| June | 76.0 | 56.0 | 102 | 33 | 3.8 |
| July | 82.1 | 62.4 | 102 | 42 | 3.3 |
| August | 80.6 | 61.4 | 102 | 40 | 3.3 |
| September | 73.3 | 54.0 | 100 | 32 | 4.2 |
| October | 62.8 | 43.3 | 87 | 17 | 4.9 |
| November | 52.9 | 34.4 | 82 | 3 | 4.4 |
| December | 43.4 | 26.2 | 76 | -14 | 4.6 |
| Entire year | 60.0 | 41.0 | 102 | -19 | 48.3 |
|
More Plymouth Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 78 °F | July 5, 1949 |
| Lowest daily high | -4 °F | December 30, 1933 |
| Greatest daily range (Difference of high and low) |
51 °F | December 9, 2008 |
| Greatest difference in daily high over two conscutive days |
43 °F | May 23–24, 1921 |
| Most daily precipitation | 8.2 inches | September 17, 1933 |
| Most monthly precipitation | 15.1 inches | September 1933 |
| Most yearly precipitation | 69.8 inches | 1972 |
| Most yearly days with precipitation | 186 | 2003 |
| Earliest freeze | October 1 | 1992 |
| Earliest day ≥ 80 °F | March 20 | 1945 |
| Earliest day ≥ 90 °F | April 7 | 2010 |
| Earliest day ≥ 100 °F | June 26 | 1952 |
| Latest freeze | May 27 | 1972 |
| Latest day ≥ 80 °F | November 2 | 1950 |
| Latest day ≥ 90 °F | September 26 | 1958 |
| Latest day ≥ 100 °F | September 2 | 1953 |
| Most days in a year < 0 °F | 11 | 2015 |
| Most days in a year < 32 °F | 154 | 1978 |
| Most days in a year ≥ 80 °F | 88 | 2010 |
| Most days in a year ≥ 90 °F | 30 | 1949 |
| Most days in a year ≥ 100 °F | 6 | 1949 |
|
Plymouth Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 13 days | Nov 3–15, 1969 |
| Without precipitation | 33 days | Sep 26 – Oct 28, 1947 |
| High temperature at or below freezing |
16 days | Jan 20 – Feb 4, 1961 |
| High temperature ≥ 80 °F | 30 days | Jul 11 – Aug 9, 2022 |
| High temperature ≥ 90 °F | 8 days | Aug 9–16, 1988 |
| High temperature ≥ 100 °F | 3 days | Aug 9–11, 1949 |