| Month | Average (°C) | Record (°C) | Average (cm) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | -2.1 | -8.9 | 14.6 | -26.1 | 12.4 | 106.6 |
| February | -2.3 | -9.9 | 12.7 | -29.5 | 11.2 | 94.5 |
| March | 0.9 | -6.9 | 19.7 | -29.2 | 9.1 | 52.9 |
| April | 6.1 | -1.4 | 23.8 | -16.1 | 8.0 | 16.7 |
| May | 12.0 | 3.2 | 27.2 | -7.1 | 9.6 | 2.8 |
| June | 16.7 | 8.0 | 30.0 | -1.2 | 9.3 | 0.0 |
| July | 20.5 | 12.8 | 30.7 | 3.5 | 11.1 | 0.0 |
| August | 20.9 | 13.1 | 29.9 | 2.2 | 11.7 | 0.0 |
| September | 17.0 | 9.3 | 30.1 | -0.7 | 13.0 | 0.0 |
| October | 11.2 | 4.5 | 23.2 | -5.6 | 13.0 | 2.6 |
| November | 6.0 | 0.2 | 20.6 | -14.9 | 12.1 | 23.3 |
| December | 0.9 | -4.9 | 16.1 | -20.2 | 11.4 | 79.5 |
| Entire year | 9.1 | 1.7 | 30.7 | -29.5 | 131.1 | 368.5 |
|
More Stephenville Weather Records
1942–2024
|
||
|---|---|---|
| Highest daily low | 21.1 °C | July 14, 1987 |
| Lowest daily high | -19.4 °C | March 10, 1986 |
| Greatest daily range (Difference of high and low) |
27.2 °C | February 20, 1974 |
| Greatest difference in daily high over two conscutive days |
21.2 °C | Feb 12–13, 1993 |
| Most daily precipitation | 13.1 cm | June 8, 1995 |
| Most monthly precipitation | 34.6 cm | August 1989 |
| Most yearly precipitation | 166.1 cm | 1982 |
| Most yearly days with precipitation | 251 | 1997 |
| Earliest snow in season | September 24 | 1997 |
| Latest snow in season | June 1 | 1946 |
| Most daily snow | 56.1 cm | January 31, 1973 |
| Most monthly snow | 264.0 cm | January 1982 |
| Most yearly snow | 698.6 cm | 1982 |
| Most snow in a winter | 696.2 cm | 1981–1982 |
| Greatest snow accumulation | 261.9 cm | March 25, 2015 |
| Earliest freeze | September 20 | 2020 |
| Earliest day ≥ 20 °C | April 20 | 1983 |
| Earliest day ≥ 25 °C | May 25 | 1950 |
| Latest freeze | June 10 | 2020 |
| Latest day ≥ 20 °C | November 5 | 1967 |
| Latest day ≥ 25 °C | September 23 | 1961 |
| Most days in a year < 0 °C | 185 | 1972 |
| Most days in a year ≥ 20 °C | 80 | 2012 |
| Most days in a year ≥ 25 °C | 16 | 2022 |
| Most days in a year ≥ 30 °C | 1 | 2023 |
|
Stephenville Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 62 days | Dec 20, 2017 – Feb 19, 2018 |
| Without precipitation | 24 days | Feb 8 – Mar 3, 1942 |
| With snow | 35 days | Dec 26, 1984 – Jan 29, 1985 |
| Freezing temperatures High temperature ≤ 0 °C |
33 days | Jan 18 – Feb 19, 1961 |
| High temperature ≥ 20 °C | 44 days | Jul 19 – Aug 31, 1967 |
| High temperature ≥ 25 °C | 6 days | Aug 20–25, 2015 |
| Years | Station | Coordinates |
|---|---|---|
| 1942–2024 | Stephenville A | location |