| Month | Average (°C) | Record (°C) | Average (cm) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | -2.6 | -10.4 | 13.9 | -42.8 | 3.7 | 38.7 |
| February | 0.3 | -9.4 | 14.4 | -38.3 | 2.4 | 23.8 |
| March | 5.4 | -5.3 | 21.1 | -31.7 | 2.2 | 19.9 |
| April | 10.9 | -1.2 | 28.8 | -16.7 | 2.3 | 7.2 |
| May | 16.5 | 3.4 | 36.7 | -5.8 | 4.1 | 3.1 |
| June | 19.6 | 7.1 | 39.6 | -4.0 | 6.4 | 0.4 |
| July | 22.9 | 9.6 | 41.1 | 0.0 | 5.5 | 0.0 |
| August | 22.6 | 8.5 | 36.1 | -1.7 | 4.1 | 0.0 |
| September | 17.3 | 4.3 | 35.8 | -8.9 | 4.1 | 0.5 |
| October | 9.5 | -0.6 | 28.3 | -28.6 | 4.5 | 9.4 |
| November | 1.7 | -5.5 | 17.7 | -41.6 | 4.2 | 32.6 |
| December | -3.0 | -10.3 | 17.2 | -42.8 | 3.4 | 37.6 |
| Entire year | 10.2 | -0.7 | 41.1 | -42.8 | 46.6 | 174.5 |
|
More Williams Lake Weather Records
1939–2024
|
||
|---|---|---|
| Highest daily low | 20.8 °C | June 30, 2021 |
| Lowest daily high | -31.1 °C | December 28, 1968 |
| Greatest daily range (Difference of high and low) |
37.8 °C | May 5, 1942 |
| Greatest difference in daily high over two conscutive days |
28.5 °C | Jan 30–31, 1989 |
| Most daily precipitation | 5.1 cm | August 25, 1945 |
| Most monthly precipitation | 19.7 cm | July 1982 |
| Most yearly precipitation | 63.3 cm | 1982 |
| Most yearly days with precipitation | 168 | 2016 |
| Earliest snow in season | September 1 | 1991 |
| Latest snow in season | June 12 | 2017 |
| Most daily snow | 51.8 cm | November 15, 2013 |
| Most monthly snow | 117.2 cm | January 1971 |
| Most yearly snow | 317.0 cm | 1975 |
| Most snow in a winter | 286.9 cm | 1975–1976 |
| Greatest snow accumulation | 112.0 cm | February 17, 1965 |
| Earliest freeze | August 19 | 1973 |
| Earliest day ≥ 20 °C | March 29 | 1941 |
| Earliest day ≥ 25 °C | April 13 | 1943 |
| Earliest day ≥ 30 °C | May 3 | 1946 |
| Earliest day ≥ 35 °C | May 5 | 1942 |
| Latest freeze | June 27 | 1963 |
| Latest day ≥ 20 °C | October 29 | 1944 |
| Latest day ≥ 25 °C | October 14 | 1945 |
| Latest day ≥ 30 °C | September 25 | 1943 |
| Latest day ≥ 35 °C | September 4 | 1988 |
| Most days in a year < 0 °C | 206 | 1985 |
| Most days in a year ≥ 20 °C | 138 | 1946 |
| Most days in a year ≥ 25 °C | 77 | 1946 |
| Most days in a year ≥ 30 °C | 30 | 1946 |
| Most days in a year ≥ 35 °C | 6 | 1942 |
| Most days in a year ≥ 40 °C | 2 | 1941 |
|
Williams Lake Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 17 days | Jun 30 – Jul 16, 2005 |
| Without precipitation | 28 days | Nov 2–29, 1972 |
| With snow | 12 days | Dec 31, 1968 – Jan 11, 1969 |
| Freezing temperatures High temperature ≤ 0 °C |
38 days | Dec 9, 1984 – Jan 15, 1985 |
| High temperature ≥ 20 °C | 54 days | Jul 8 – Aug 30, 1961 |
| High temperature ≥ 25 °C | 20 days | Jun 25 – Jul 14, 2021 |
| High temperature ≥ 30 °C | 8 days | Jul 6–13, 1945 |
| High temperature ≥ 35 °C | 5 days | Jun 30 – Jul 4, 1942 |