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Has the climate in Ciudad Hidalgo changed?

Ciudad Hidalgo has warmed about 2°F between 1971 and 2012.

About 0.5°F per decade, measured from Ciudad Hidalgo's official daily weather records, 1971–2012. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Ciudad Hidalgo's warming is broadly in line with other cities in Mexico — 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
1 / yr
Recent
2 / yr
Colder winters — more frosts
Average temperature
+1.2°F
1970s
65.1°F
Recent
66.2°F
A steady upward drift
Hot days above 90°F
23 more days
1970s
15 / yr
Recent
38 / yr
More days of serious heat
Rainy days
14 fewer days
1970s
93 / yr
Recent
79 / yr
Drier on average

Ciudad Hidalgo's temperature, year by year

Average temperature for each year from 1971 to 2012.

62°64°66°68°1971: 64.5°F1972: 65.6°F1973: 64.6°F1974: 64.4°F1975: 63.9°F1976: 63.8°F1977: 64.8°F1978: 65.6°F1979: 66.0°F1980: 65.8°F1981: 65.2°F1982: 66.4°F1983: 65.2°F1984: 65.4°F1985: 65.6°F1986: 65.7°F1987: 66.3°F1988: 65.3°F1989: 65.5°F1990: 66.1°F1991: 66.1°F1992: 65.4°F1993: 66.2°F1994: 66.6°F1995: 66.3°F1996: 65.5°F1997: 65.8°F1998: 67.0°F1999: 64.5°F2000: 65.4°F2001: 65.5°F2002: 66.8°F2003: 66.5°F2004: 65.7°F2005: 67.2°F2006: 66.6°F2007: 65.8°F2008: 66.0°F2009: 67.4°F2010: 66.1°F2011: 67.3°F2012: 66.5°Flong-term trend197119801990200020102012
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.

In day-to-day terms, that long-term shift shows up as about 13 more days above 90°F compared with the 1970s.

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°+1.5°+2.0°January: +0.8°F+0.8JFebruary: +1.5°F+1.5FMarch: +0.9°F+0.9MApril: +1.4°F+1.4AMay: +1.1°F+1.1MJune: +0.7°F+0.7JJuly: +0.5°F+0.5JAugust: +0.6°F+0.6ASeptember: +0.2°F+0.2SOctober: +0.5°F+0.5ONovember: +0.1°F+0.1NDecember: +0.1°F+0.1D

February has warmed the most — about 1.5°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Laguna Del Fresno, about 20 km from the city centre.

How we build these numbers →