| Month | Average (°C) | Record (°C) | Average (cm) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | -11.8 | -21.3 | 8.5 | -46.1 | 1.4 |
| February | -8.9 | -19.7 | 11.0 | -43.9 | 1.0 |
| March | -1.9 | -13.2 | 20.6 | -37.8 | 1.3 |
| April | 8.7 | -3.5 | 32.2 | -28.3 | 2.0 |
| May | 16.7 | 2.9 | 39.0 | -15.6 | 4.8 |
| June | 21.7 | 9.1 | 38.9 | -5.0 | 7.2 |
| July | 24.5 | 11.9 | 37.8 | 0.0 | 7.5 |
| August | 23.9 | 10.3 | 38.3 | -4.4 | 5.5 |
| September | 18.2 | 4.9 | 37.8 | -12.2 | 4.2 |
| October | 8.8 | -1.6 | 30.6 | -20.6 | 3.0 |
| November | -1.8 | -10.2 | 20.0 | -36.0 | 1.7 |
| December | -9.4 | -18.2 | 11.1 | -45.6 | 1.4 |
| Entire year | 7.6 | -3.9 | 39.0 | -46.1 | 40.9 |
|
More Swan River Weather Records
1904–2024
|
||
|---|---|---|
| Highest daily low | 22.2 °C | July 21, 1955 |
| Lowest daily high | -36.7 °C | January 10, 1912 |
| Greatest daily range (Difference of high and low) |
37.2 °C | January 16, 1972 |
| Greatest difference in daily high over two conscutive days |
30.6 °C | Apr 26–27, 1974 |
| Most daily precipitation | 8.5 cm | September 11, 1916 |
| Most monthly precipitation | 19.6 cm | June 1976 |
| Most yearly precipitation | 61.2 cm | 1986 |
| Most yearly days with precipitation | 140 | 2016 |
| Earliest freeze | August 1 | 1915 |
| Earliest day ≥ 20 °C | March 22 | 1910 |
| Earliest day ≥ 25 °C | April 11 | 1949 |
| Earliest day ≥ 30 °C | April 28 | 1949 |
| Earliest day ≥ 35 °C | May 22 | 1980 |
| Latest freeze | June 20 | 1940 |
| Latest day ≥ 20 °C | November 5 | 1975 |
| Latest day ≥ 25 °C | October 18 | 1963 |
| Latest day ≥ 30 °C | October 9 | 1910 |
| Latest day ≥ 35 °C | September 26 | 2014 |
| Most days in a year < 0 °C | 224 | 2002 |
| Most days in a year ≥ 20 °C | 127 | 1938 |
| Most days in a year ≥ 25 °C | 81 | 1961 |
| Most days in a year ≥ 30 °C | 36 | 1961 |
| Most days in a year ≥ 35 °C | 8 | 1919 |
|
Swan River Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 10 days | Jul 25 – Aug 3, 2009 |
| Without precipitation | 109 days | Dec 28, 2005 – Apr 15, 2006 |
| Freezing temperatures High temperature ≤ 0 °C |
108 days | Nov 9, 1996 – Feb 24, 1997 |
| High temperature ≥ 20 °C | 73 days | Jun 17 – Aug 28, 1919 |
| High temperature ≥ 25 °C | 23 days | Jun 16 – Jul 8, 1919 |
| High temperature ≥ 30 °C | 17 days | Jun 22 – Jul 8, 1919 |
| High temperature ≥ 35 °C | 3 days | Jun 4–6, 1988 |