| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 26.6 | 10.8 | 60 | -31 | 1.4 | 10.2 |
| February | 30.5 | 13.5 | 70 | -33 | 1.3 | 9.7 |
| March | 42.4 | 24.2 | 82 | -23 | 1.9 | 4.3 |
| April | 55.8 | 35.4 | 91 | 10 | 3.7 | 1.6 |
| May | 68.0 | 47.1 | 97 | 22 | 4.2 | 0.1 |
| June | 78.0 | 57.5 | 101 | 30 | 5.8 | 0.0 |
| July | 81.6 | 61.4 | 104 | 41 | 4.5 | 0.0 |
| August | 79.8 | 59.4 | 103 | 34 | 4.2 | 0.0 |
| September | 73.1 | 51.0 | 100 | 20 | 3.5 | 0.0 |
| October | 59.8 | 39.7 | 89 | 7 | 3.0 | 0.3 |
| November | 44.7 | 28.1 | 76 | -12 | 2.1 | 1.9 |
| December | 32.2 | 17.6 | 66 | -27 | 1.7 | 9.3 |
| Entire year | 56.1 | 37.2 | 104 | -33 | 37.2 | 37.5 |
|
More Watertown Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 80 °F | June 10, 1895 |
| Lowest daily high | -17 °F | January 19, 1994 |
| Greatest daily range (Difference of high and low) |
61 °F | December 4, 1893 |
| Greatest difference in daily high over two conscutive days |
49 °F | Jan 19–20, 1996 |
| Most daily precipitation | 6.6 inches | July 11, 1982 |
| Most monthly precipitation | 14.8 inches | June 2008 |
| Most yearly precipitation | 57.5 inches | 2018 |
| Most yearly days with precipitation | 155 | 2019 |
| Earliest snow in season | September 26 | 1942 |
| Latest snow in season | May 11 | 1966 |
| Most daily snow | 19.0 inches | January 16, 1897 |
| Most monthly snow | 50.4 inches | January 1979 |
| Most yearly snow | 92.0 inches | 2008 |
| Most snow in a winter | 91.5 inches | 1978–1979 |
| Greatest snow accumulation | 36.0 inches | January 25, 1979 |
| Earliest freeze | September 2 | 1893 |
| Earliest day ≥ 80 °F | March 21 | 2012 |
| Earliest day ≥ 90 °F | April 22 | 1980 |
| Earliest day ≥ 100 °F | June 1 | 1934 |
| Latest freeze | June 6 | 1894 |
| Latest day ≥ 80 °F | October 30 | 1950 |
| Latest day ≥ 90 °F | September 29 | 1953 |
| Latest day ≥ 100 °F | September 15 | 1939 |
| Most days in a year < 0 °F | 54 | 1893 |
| Most days in a year < 32 °F | 183 | 1893 |
| Most days in a year ≥ 80 °F | 104 | 1939 |
| Most days in a year ≥ 90 °F | 43 | 1988 |
| Most days in a year ≥ 100 °F | 8 | 1947 |
|
Watertown Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 12 days | Jun 3–14, 1955 |
| Without precipitation | 29 days | Mar 15 – Apr 12, 1925 |
| With snow | 7 days | Nov 27 – Dec 3, 1940 |
| High temperature at or below freezing |
51 days | Dec 31, 1978 – Feb 19, 1979 |
| High temperature ≥ 80 °F | 41 days | Jun 20 – Jul 30, 1921 |
| High temperature ≥ 90 °F | 12 days | Jul 13–24, 1901 |
| High temperature ≥ 100 °F | 4 days | Jun 28 – Jul 1, 1931 |
| Years | Station | Coordinates |
|---|---|---|
| 1893–2024 | Watertown WWTP | location |