Weather stations › Mustasaari Valassaaret
Weather station · 101464
Mustasaari Valassaaret
Coordinates
63.44°N, 21.07°E
Elevation
4 m
Data since
30.09.1909
Observation period
1909–2026 · 77 yr
Climate summary
Annual mean temperature
4.4 °C
whole-period average
Precipitation / year
470 mm
mean annual precipitation
Hot days / year
1
max ≥ 25 °C
Ice days / year
75
max < 0 °C
Annual mean temperature 1959–2025
▲ +2.9 °C over the period
Climate normals · monthly
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high | 7.4 | 7.0 | 11.3 | 16.6 | 21.5 | 25.7 | 31.4 | 31.3 | 24.5 | 15.5 | 11.9 | 7.0 | 31.4 |
| Mean maximum | 3.6 | 2.8 | 5.0 | 10.2 | 16.5 | 20.3 | 23.6 | 22.7 | 18.1 | 12.1 | 7.4 | 5.0 | 24.0 |
| Average high | -1.2 | -2.5 | 0.2 | 4.2 | 9.7 | 14.7 | 18.7 | 18.2 | 13.6 | 7.6 | 3.5 | 0.9 | 7.3 |
| Daily mean | -3.2 | -4.7 | -2.2 | 1.6 | 6.4 | 11.6 | 15.8 | 15.6 | 11.3 | 6.0 | 2.0 | -0.9 | 4.9 |
| Average low | -5.3 | -6.9 | -4.5 | -0.4 | 4.0 | 9.1 | 13.4 | 13.5 | 9.4 | 4.4 | 0.4 | -2.6 | 2.9 |
| Mean minimum | -13.7 | -15.8 | -11.6 | -5.0 | 0.3 | 5.1 | 9.7 | 9.4 | 4.7 | -1.0 | -5.1 | -9.7 | -18.1 |
| Record low | -27.4 | -25.4 | -19.5 | -11.6 | -2.1 | 2.8 | 6.6 | 6.8 | 1.4 | -8.0 | -15.6 | -23.4 | -27.4 |
| Precipitation (mm) | 38 | 29 | 30 | 24 | 32 | 43 | 55 | 53 | 47 | 56 | 54 | 47 | 508 |
| Maximum snow depth (cm) | 18 | 24 | 30 | 21 | 2 | 0 | 0 | 0 | 0 | 3 | 6 | 13 | 33 |
All values for the selected period · temperatures °C · snow: mean of the maximum snow depth; the Year column covers the whole year
Records
Extremes over the entire observation period
On this day · 1.8.
Measured for this calendar day
Warmest
26.1°
2018
Coldest
8.1°
1962
On average
16.5°
67-year average
Wettest
16 mm
1997
Open in tools
Source: Finnish Meteorological Institute open data. Statistics are computed over the station's entire observation period.