Weather stations › Helsinki Malmi lentokenttä
Weather station · 101009
Helsinki Malmi lentokenttä
Coordinates
60.25°N, 25.05°E
Elevation
15 m
Data since
01.01.1959
Observation period
1959–2026 · 53 yr
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Climate summary
Annual mean temperature
5.2°C
whole-period average
Precipitation / year
680mm
mean annual precipitation
Hot days / year
13
max ≥ 25 °C
Ice days / year
69
max < 0 °C
Annual mean temperature 1959–2025
▲ +2.7 °C over the period
1959anomaly from the period average · gaps shown in dark grey2025
Climate normals · monthly
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high | 7.7 | 10.0 | 11.6 | 22.7 | 26.2 | 31.5 | 31.2 | 31.2 | 24.5 | 19.4 | 11.3 | 8.5 | 31.5 |
| Mean maximum | 3.9 | 3.4 | 7.4 | 15.0 | 23.5 | 26.5 | 26.7 | 25.6 | 19.6 | 14.5 | 8.5 | 5.5 | 28.3 |
| Average high | -2.7 | -2.7 | 1.0 | 7.2 | 14.9 | 19.5 | 21.4 | 19.5 | 14.0 | 8.3 | 3.0 | -0.2 | 8.6 |
| Daily mean | -5.5 | -5.9 | -2.2 | 3.2 | 10.0 | 14.9 | 17.1 | 15.3 | 10.2 | 5.4 | 0.7 | -2.9 | 5.0 |
| Average low | -8.9 | -9.5 | -5.6 | -0.6 | 4.5 | 9.6 | 12.3 | 11.0 | 6.3 | 2.4 | -2.1 | -6.2 | 1.1 |
| Mean minimum | -23.6 | -22.4 | -17.8 | -7.0 | -2.5 | 2.1 | 7.3 | 3.6 | -1.7 | -6.0 | -13.1 | -19.1 | -26.0 |
| Record low | -35.3 | -33.2 | -25.2 | -11.0 | -6.3 | -0.6 | 5.1 | -0.1 | -8.0 | -15.1 | -21.7 | -33.5 | -35.3 |
| Precipitation (mm) | 52 | 37 | 41 | 38 | 33 | 45 | 70 | 85 | 74 | 79 | 81 | 64 | 697 |
| Maximum snow depth (cm) | 32 | 37 | 39 | 20 | 0 | 0 | 0 | 0 | 0 | 3 | 11 | 22 | 46 |
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 · 28.9.
Measured for this calendar day
Warmest
18.9°C
2023
Coldest
−7.5°C
1986
On average
8.1°C
49-year average
Wettest
18.4mm
1988
Open in tools
Source: Finnish Meteorological Institute open data. Statistics are computed over the station's entire observation period.