Home › Cities › Germany › Iserlohn › Tools › Climate trends
Has the climate in Iserlohn changed?
Iserlohn has warmed about 2.8°F since 2004.
About 1.3°F per decade, measured from Iserlohn's official daily weather records, 2004–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
What has actually changed
Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.
Iserlohn's temperature, year by year
Average temperature for each year from 2004 to 2025.
Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.
In day-to-day terms, that long-term shift shows up as about 57 more freezing nights a year and about 5 more days above 90°F compared with the 1970s.
Methodology & sources
Temperature — 1991–2020 normals computed from 17 years of daily observations at Werl, a weather station, about 26 km from the city centre. The underlying daily records come from NOAA's global station network.