| Month | Average (°C) | Record (°C) | Average (cm) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | -4.3 | -10.5 | 7.1 | -37.1 | 4.4 |
| February | -3.8 | -10.9 | 8.5 | -37.5 | 3.7 |
| March | 1.0 | -7.7 | 15.0 | -36.3 | 3.7 |
| April | 8.0 | -1.8 | 23.8 | -24.4 | 3.7 |
| May | 15.5 | 3.3 | 30.2 | -8.3 | 3.8 |
| June | 19.8 | 8.5 | 33.1 | -4.9 | 6.1 |
| July | 22.3 | 11.4 | 32.7 | 0.0 | 7.1 |
| August | 20.3 | 9.8 | 33.2 | -3.1 | 7.1 |
| September | 14.4 | 5.5 | 26.4 | -6.8 | 5.4 |
| October | 7.0 | 1.1 | 19.9 | -16.3 | 6.1 |
| November | 1.4 | -2.8 | 11.8 | -26.5 | 5.5 |
| December | -2.3 | -7.5 | 9.7 | -33.0 | 5.3 |
| Entire year | 8.4 | 0.0 | 33.2 | -37.5 | 61.8 |
|
More Mikkeli Weather Records
1959–2024
|
||
|---|---|---|
| Highest daily low | 21.1 °C | July 27, 2010 |
| Lowest daily high | -33.9 °C | January 9, 1987 |
| Greatest daily range (Difference of high and low) |
30.3 °C | February 18, 1998 |
| Greatest difference in daily high over two conscutive days |
25.0 °C | Dec 9–10, 1973 |
| Most daily precipitation | 6.3 cm | May 13, 2014 |
| Most monthly precipitation | 22.1 cm | August 1974 |
| Most yearly precipitation | 82.4 cm | 1974 |
| Most yearly days with precipitation | 241 | 1977 |
| Earliest freeze | August 1 | 1959 |
| Earliest day ≥ 20 °C | April 16 | 2007 |
| Earliest day ≥ 25 °C | May 6 | 2004 |
| Earliest day ≥ 30 °C | May 19 | 2014 |
| Latest freeze | June 23 | 1963 |
| Latest day ≥ 20 °C | September 27 | 2020 |
| Latest day ≥ 25 °C | September 3 | 1963 |
| Latest day ≥ 30 °C | August 19 | 2022 |
| Most days in a year < 0 °C | 208 | 1968 |
| Most days in a year ≥ 20 °C | 93 | 2018 |
| Most days in a year ≥ 25 °C | 44 | 2018 |
| Most days in a year ≥ 30 °C | 9 | 2021 |
|
Mikkeli Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 51 days | Nov 19, 1999 – Jan 8, 2000 |
| Without precipitation | 29 days | May 17 – Jun 14, 1992 |
| Freezing temperatures High temperature ≤ 0 °C |
85 days | Dec 8, 1965 – Mar 2, 1966 |
| High temperature ≥ 20 °C | 39 days | Jun 20 – Jul 28, 1988 |
| High temperature ≥ 25 °C | 25 days | Jul 18 – Aug 11, 2014 |
| High temperature ≥ 30 °C | 4 days | Jun 20–23, 2021 |
| Years | Station | Coordinates |
|---|---|---|
| 1959–2024 | Mikkeli Lentoasema | location |