Weather stations › Lohja Porla
Weather station · 100974
Lohja Porla
Coordinates
60.24°N, 24.05°E
Elevation
35 m
Data since
01.01.1959
Observation period
1959–2026 · 68 yr
Climate summary
Annual mean temperature
5.5 °C
whole-period average
Precipitation / year
695 mm
mean annual precipitation
Hot days / year
12
max ≥ 25 °C
Ice days / year
62
max < 0 °C
Annual mean temperature 1959–2025
▲ +2.6 °C over the period
Climate normals · monthly
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high | 8.5 | 8.5 | 14.4 | 23.4 | 29.0 | 29.8 | 31.7 | 30.8 | 24.0 | 16.4 | 12.9 | 10.5 | 31.7 |
| Mean maximum | 4.5 | 4.1 | 8.8 | 17.7 | 24.2 | 25.7 | 27.5 | 26.0 | 20.4 | 13.8 | 9.1 | 5.6 | 28.4 |
| Average high | -1.4 | -1.7 | 2.3 | 8.8 | 15.6 | 19.4 | 22.1 | 20.3 | 15.0 | 8.5 | 3.6 | 0.7 | 9.4 |
| Daily mean | -3.8 | -4.5 | -1.3 | 4.2 | 10.6 | 15.0 | 17.8 | 16.3 | 11.6 | 6.1 | 1.8 | -1.4 | 6.0 |
| Average low | -6.5 | -7.6 | -4.8 | 0.4 | 6.1 | 11.0 | 14.1 | 13.1 | 8.9 | 3.8 | -0.1 | -3.6 | 2.9 |
| Mean minimum | -19.8 | -19.6 | -15.2 | -5.6 | 0.3 | 6.2 | 10.1 | 8.3 | 2.9 | -3.4 | -7.6 | -13.9 | -23.5 |
| Record low | -29.5 | -28.6 | -24.6 | -12.4 | -2.5 | 3.1 | 6.4 | 5.2 | -2.6 | -11.3 | -16.6 | -28.8 | -29.5 |
| Precipitation (mm) | 58 | 45 | 38 | 35 | 38 | 62 | 68 | 83 | 59 | 76 | 74 | 67 | 701 |
| Maximum snow depth (cm) | 23 | 34 | 31 | 19 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 14 | 36 |
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 · 31.7.
Measured for this calendar day
Warmest
30.3°
2003
Coldest
8.9°
1964
On average
17.7°
67-year average
Wettest
44 mm
1987
Open in tools
Source: Finnish Meteorological Institute open data. Statistics are computed over the station's entire observation period.