Weather stations › Kustavi Isokari
Weather station · 101059
Kustavi Isokari
Coordinates
60.72°N, 21.03°E
Elevation
5 m
Data since
02.01.1995
Observation period
1995–2026 · 32 yr
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Climate summary
Annual mean temperature
6.7°C
whole-period average
Precipitation / year
490mm
mean annual precipitation
Hot days / year
3
max ≥ 25 °C
Ice days / year
40
max < 0 °C
Annual mean temperature 1996–2025
▲ +1.6 °C over the period
1996anomaly 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 | 7.9 | 6.5 | 8.6 | 17.9 | 26.1 | 27.5 | 29.0 | 28.0 | 22.7 | 16.6 | 12.6 | 9.3 | 29.0 |
| Mean maximum | 4.1 | 3.5 | 5.5 | 11.5 | 18.2 | 22.0 | 24.3 | 23.9 | 19.1 | 13.7 | 9.1 | 6.2 | 24.7 |
| Average high | 0.1 | -0.8 | 1.3 | 5.6 | 11.0 | 15.8 | 19.6 | 19.3 | 15.3 | 9.5 | 5.2 | 2.4 | 8.7 |
| Daily mean | -1.7 | -2.7 | -0.8 | 2.8 | 7.7 | 12.8 | 16.9 | 17.1 | 13.2 | 8.0 | 3.9 | 0.8 | 6.5 |
| Average low | -3.5 | -4.5 | -2.7 | 1.1 | 5.8 | 10.8 | 15.1 | 15.2 | 11.7 | 6.5 | 2.4 | -0.8 | 4.8 |
| Mean minimum | -12.2 | -13.2 | -8.9 | -2.9 | 1.6 | 6.6 | 11.5 | 11.2 | 6.8 | 0.6 | -3.6 | -7.2 | -15.2 |
| Record low | -24.9 | -22.3 | -18.4 | -10.1 | -1.3 | 4.1 | 9.6 | 5.9 | 4.1 | -4.0 | -10.7 | -21.0 | -24.9 |
| Precipitation (mm) | 31 | 21 | 23 | 24 | 32 | 38 | 40 | 47 | 58 | 53 | 53 | 55 | 475 |
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 · 29.9.
Measured for this calendar day
Warmest
16.6°C
2023
Coldest
4.5°C
2001
On average
11.0°C
31-year average
Wettest
12.5mm
2019
Open in tools
Source: Finnish Meteorological Institute open data. Statistics are computed over the station's entire observation period.