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Has the climate in Bushehr changed?
Bushehr has warmed about 2.7°F between 1997 and 2017.
About 1.7°F per decade, measured from Bushehr's official daily weather records, 1997–2017. 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.
Bushehr's temperature, year by year
Average temperature for each year from 1997 to 2017.
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 91 more days above 90°F compared with the 1970s.
Methodology & sources
Temperature — 1991–2020 normals computed from 12 years of daily observations at Bushehr, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.