| Month | Average (°C) | Record (°C) | Average (cm) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 0.4 | -6.3 | 17.8 | -28.0 | 6.8 | 32.5 |
| February | 2.1 | -5.6 | 23.0 | -23.5 | 6.0 | 26.6 |
| March | 7.7 | -1.6 | 28.5 | -20.0 | 6.8 | 16.5 |
| April | 14.5 | 3.9 | 31.1 | -9.5 | 8.7 | 4.0 |
| May | 21.5 | 10.1 | 34.5 | -2.8 | 9.3 | 0.2 |
| June | 26.9 | 15.9 | 40.2 | 2.8 | 8.0 | 0.0 |
| July | 29.0 | 18.3 | 39.0 | 5.6 | 8.8 | 0.0 |
| August | 27.8 | 17.7 | 38.5 | 5.2 | 9.3 | 0.0 |
| September | 24.1 | 13.8 | 37.2 | -1.1 | 9.4 | 0.0 |
| October | 16.8 | 7.6 | 32.5 | -5.0 | 7.0 | 0.1 |
| November | 9.3 | 1.7 | 26.1 | -15.6 | 7.2 | 4.8 |
| December | 3.2 | -2.9 | 21.0 | -23.4 | 6.4 | 21.7 |
| Entire year | 15.4 | 6.2 | 40.2 | -28.0 | 94.3 | 105.7 |
|
More Windsor Weather Records
1940–2024
|
||
|---|---|---|
| Highest daily low | 27.2 °C | August 12, 1943 |
| Lowest daily high | -18.3 °C | January 17, 1982 |
| Greatest daily range (Difference of high and low) |
26.5 °C | April 10, 1977 |
| Greatest difference in daily high over two conscutive days |
23.9 °C | Apr 17–18, 1985 |
| Most daily precipitation | 14.7 cm | September 28, 2016 |
| Most monthly precipitation | 25.2 cm | August 2017 |
| Most yearly precipitation | 145.3 cm | 2011 |
| Most yearly days with precipitation | 169 | 1985 |
| Earliest snow in season | October 11 | 1988 |
| Latest snow in season | May 14 | 2016 |
| Most daily snow | 36.8 cm | February 25, 1965 |
| Most monthly snow | 82.8 cm | January 1978 |
| Most yearly snow | 196.3 cm | 2005 |
| Most snow in a winter | 199.6 cm | 1969–1970 |
| Greatest snow accumulation | 50.0 cm | January 13, 1999 |
| Earliest freeze | September 28 | 1942 |
| Earliest day ≥ 25 °C | March 7 | 2000 |
| Earliest day ≥ 30 °C | April 15 | 2003 |
| Earliest day ≥ 35 °C | June 6 | 1999 |
| Latest freeze | May 19 | 2002 |
| Latest day ≥ 25 °C | November 10 | 2020 |
| Latest day ≥ 30 °C | October 9 | 2018 |
| Latest day ≥ 35 °C | September 13 | 1952 |
| Most days in a year < 0 °C | 140 | 1976 |
| Most days in a year ≥ 20 °C | 170 | 2017 |
| Most days in a year ≥ 25 °C | 123 | 2021 |
| Most days in a year ≥ 30 °C | 61 | 2005 |
| Most days in a year ≥ 35 °C | 15 | 1988 |
| Most days in a year ≥ 40 °C | 1 | 1988 |
|
Windsor Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 14 days | Jan 19 – Feb 1, 2017 |
| Without precipitation | 31 days | Oct 3 – Nov 2, 1944 |
| With snow | 11 days | Mar 16–26, 1960 |
| Freezing temperatures High temperature ≤ 0 °C |
45 days | Dec 26, 1976 – Feb 8, 1977 |
| High temperature ≥ 20 °C | 132 days | May 19 – Sep 27, 2016 |
| High temperature ≥ 25 °C | 64 days | Jun 21 – Aug 23, 2019 |
| High temperature ≥ 30 °C | 14 days | Jul 27 – Aug 9, 1988 |
| High temperature ≥ 35 °C | 5 days | Jul 5–9, 1988 |