| Month | Average (°C) | Record (°C) | Average (cm) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | -3.4 | -11.8 | 15.6 | -37.0 | 11.9 | 86.2 |
| February | -2.0 | -11.7 | 13.5 | -37.0 | 7.9 | 57.8 |
| March | 3.2 | -6.2 | 25.6 | -32.8 | 7.0 | 31.1 |
| April | 10.5 | 0.4 | 32.0 | -21.1 | 8.8 | 16.6 |
| May | 18.3 | 7.2 | 33.3 | -5.6 | 9.0 | 0.2 |
| June | 23.6 | 12.8 | 36.7 | 0.0 | 8.7 | 0.0 |
| July | 26.0 | 15.7 | 40.0 | 2.2 | 8.6 | 0.0 |
| August | 25.3 | 15.0 | 37.8 | 1.7 | 9.6 | 0.0 |
| September | 20.7 | 11.0 | 34.4 | -4.4 | 8.4 | 0.0 |
| October | 12.9 | 4.8 | 29.0 | -10.0 | 9.0 | 4.9 |
| November | 6.1 | -1.1 | 25.0 | -22.8 | 9.3 | 35.9 |
| December | 0.0 | -7.0 | 20.0 | -36.1 | 11.0 | 83.0 |
| Entire year | 11.8 | 2.4 | 40.0 | -37.0 | 105.3 | 307.1 |
|
More Orillia Weather Records
1871–2024
|
||
|---|---|---|
| Highest daily low | 27.2 °C | August 21, 1916 |
| Lowest daily high | -29.4 °C | January 10, 1893 |
| Greatest daily range (Difference of high and low) |
37.8 °C | March 4, 1950 |
| Greatest difference in daily high over two conscutive days |
26.0 °C | Mar 9–10, 2000 |
| Most daily precipitation | 14.7 cm | August 6, 1955 |
| Most monthly precipitation | 23.1 cm | November 1995 |
| Most yearly precipitation | 135.0 cm | 2017 |
| Most yearly days with precipitation | 191 | 1995 |
| Earliest snow in season | September 27 | 1942 |
| Latest snow in season | May 31 | 2009 |
| Most daily snow | 73.7 cm | December 24, 1878 |
| Most monthly snow | 196.9 cm | December 1878 |
| Most yearly snow | 485.8 cm | 1995 |
| Most snow in a winter | 490.3 cm | 1995–1996 |
| Greatest snow accumulation | 110.0 cm | December 12, 1995 |
| Earliest freeze | September 10 | 1917 |
| Earliest day ≥ 20 °C | March 8 | 2000 |
| Earliest day ≥ 25 °C | March 28 | 1945 |
| Earliest day ≥ 30 °C | April 16 | 2002 |
| Earliest day ≥ 35 °C | June 27 | 1941 |
| Latest freeze | May 31 | 1930 |
| Latest day ≥ 20 °C | December 5 | 1941 |
| Latest day ≥ 25 °C | November 1 | 1950 |
| Latest day ≥ 30 °C | September 25 | 2017 |
| Latest day ≥ 35 °C | August 22 | 1916 |
| Most days in a year < 0 °C | 180 | 1956 |
| Most days in a year ≥ 20 °C | 137 | 1906 |
| Most days in a year ≥ 25 °C | 92 | 2018 |
| Most days in a year ≥ 30 °C | 31 | 1916 |
| Most days in a year ≥ 35 °C | 10 | 1916 |
| Most days in a year ≥ 40 °C | 1 | 1911 |
|
Orillia Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 19 days | Jan 2–20, 2003 |
| Without precipitation | 41 days | Mar 6 – Apr 15, 1907 |
| With snow | 15 days | Feb 20 – Mar 6, 2001 |
| Freezing temperatures High temperature ≤ 0 °C |
48 days | Dec 25, 1917 – Feb 10, 1918 |
| High temperature ≥ 20 °C | 88 days | Jun 20 – Sep 15, 2005 |
| High temperature ≥ 25 °C | 41 days | Jun 27 – Aug 6, 1955 |
| High temperature ≥ 30 °C | 17 days | Jul 15–31, 1916 |
| High temperature ≥ 35 °C | 6 days | Jul 8–13, 1936 |