Santa Rosa has warmed about 0.6°F between 1971 and 2024.
About 0.1°F per decade, measured from Santa Rosa's official daily weather records, 1971–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
Is that a lot? Santa Rosa's warming is broadly in line with other cities in Argentina — neither unusually fast nor unusually slow.
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.
Freezing nights
1 more night
1970s
37 / yr
→
Recent
38 / yr
Colder winters — more frosts
Average temperature
+0.5°F
1970s
60.4°F
→
Recent
60.9°F
A steady upward drift
Hot days above 90°F
1 fewer day
1970s
40 / yr
→
Recent
39 / yr
Slightly fewer hot days
Rainy days
26 more days
1970s
34 / yr
→
Recent
60 / yr
Wetter on average
Santa Rosa's temperature, year by year
Average temperature for each year from 1971 to 2024.
a warmer-than-average year a cooler-than-average year
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.
When in the year the change shows up
How much warmer each month is now than in the 1970s.
Useful if you garden or care about a particular season —
otherwise the headline above already has the answer.
November has warmed the most — about 2.2°F. The warming runs across the whole year, not just one season.
Methodology & sources
Temperature — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Santa_rosa_aero, about 3 km from the city centre.