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Has the climate in Copiapó changed?

How Copiapó's climate has changed

About 0.1°F per decade, measured from Copiapó's official daily weather records, 1976–2004. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Copiapó's warming is broadly in line with other cities in Chile — 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 fewer night
1970s
1 / yr
Recent
0 / yr
Milder winters — fewer frosts
Average temperature
about the same
1970s
64.2°F
Recent
64.3°F
Year-round temperature has barely moved
Hot days above 90°F
1 fewer day
1970s
1 / yr
Recent
0 / yr
Slightly fewer hot days
Rainy days
about the same
1970s
2 / yr
Recent
4 / yr
Rainfall pattern about the same

Copiapó's temperature, year by year

Average temperature for each year from 1976 to 2004.

61°63°65°67°1976: 63.9°F1977: 64.8°F1978: 64.0°F1979: 64.1°F1980: 64.7°F1981: 64.1°F1984: 63.6°F1985: 63.5°F1986: 64.2°F1987: 64.8°F1988: 62.8°F1989: 63.4°F1990: 63.1°F1991: 63.9°F1993: 63.9°F1999: 63.8°F2000: 64.0°F2001: 64.2°F2002: 64.7°F2003: 63.8°F2004: 65.6°Flong-term trend19761980199020002004
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.

0.0°+0.5°+1.0°March: +0.0°F+0.0M

March has warmed the most — about 0.0°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

How we build these numbers →