| Month | Average (°C) | Record (°C) | Average (cm) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | -2.6 | -9.2 | 8.6 | -40.5 | 3.2 |
| February | -2.7 | -10.1 | 9.8 | -43.6 | 2.4 |
| March | 1.7 | -6.8 | 15.4 | -31.4 | 2.6 |
| April | 8.2 | -1.1 | 24.5 | -21.1 | 2.8 |
| May | 14.9 | 3.1 | 29.2 | -7.6 | 4.6 |
| June | 19.5 | 8.1 | 32.6 | -3.0 | 5.9 |
| July | 22.1 | 11.0 | 33.6 | -0.8 | 7.4 |
| August | 20.5 | 9.6 | 31.5 | -2.4 | 7.3 |
| September | 15.0 | 5.5 | 27.7 | -7.4 | 5.4 |
| October | 7.4 | 1.3 | 20.6 | -22.8 | 5.8 |
| November | 2.1 | -2.5 | 12.9 | -29.4 | 4.7 |
| December | -0.8 | -6.4 | 9.1 | -37.3 | 4.0 |
| Entire year | 8.8 | 0.3 | 33.6 | -43.6 | 56.1 |
|
More Seinäjoki Weather Records
1959–2024
|
||
|---|---|---|
| Highest daily low | 20.2 °C | July 30, 2018 |
| Lowest daily high | -35.6 °C | January 10, 1987 |
| Greatest daily range (Difference of high and low) |
31.3 °C | December 10, 1973 |
| Greatest difference in daily high over two conscutive days |
25.1 °C | Dec 9–10, 1973 |
| Most daily precipitation | 12.0 cm | August 6, 1967 |
| Most monthly precipitation | 25.5 cm | August 1967 |
| Most yearly precipitation | 72.6 cm | 1967 |
| Most yearly days with precipitation | 227 | 2001 |
| Earliest freeze | August 7 | 1999 |
| Earliest day ≥ 20 °C | April 13 | 1989 |
| Earliest day ≥ 25 °C | May 6 | 2004 |
| Earliest day ≥ 30 °C | June 7 | 2019 |
| Latest freeze | July 31 | 1959 |
| Latest day ≥ 20 °C | October 14 | 2018 |
| Latest day ≥ 25 °C | September 7 | 1968 |
| Latest day ≥ 30 °C | August 7 | 2023 |
| Most days in a year < 0 °C | 209 | 1976 |
| Most days in a year ≥ 20 °C | 93 | 2002 |
| Most days in a year ≥ 25 °C | 36 | 2018 |
| Most days in a year ≥ 30 °C | 9 | 2018 |
|
Seinäjoki Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 27 days | Sep 7 – Oct 3, 1986 |
| Without precipitation | 33 days | May 4 – Jun 5, 2018 |
| Freezing temperatures High temperature ≤ 0 °C |
93 days | Nov 24, 1978 – Feb 24, 1979 |
| High temperature ≥ 20 °C | 48 days | Jun 29 – Aug 15, 2010 |
| High temperature ≥ 25 °C | 21 days | Jul 14 – Aug 3, 2018 |
| High temperature ≥ 30 °C | 6 days | Jul 27 – Aug 1, 2018 |
| Years | Station | Coordinates |
|---|---|---|
| 1959–2024 | Seinajoki Pelmaa | location |