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Has the climate in Mandeville changed?

Mandeville has warmed about 2.8°F between 1973 and 2024.

About 0.5°F per decade, measured from Mandeville's official daily weather records, 1973–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Mandeville's climate has warmed faster than most other cities in Jamaica.

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
about the same
1970s
0 / yr
Recent
0 / yr
Winters about as cold as before
Average temperature
+1.7°F
1970s
79.6°F
Recent
81.2°F
A steady upward drift
Hot days above 90°F
110 more days
1970s
71 / yr
Recent
181 / yr
More days of serious heat
Rainy days
53 more days
1970s
29 / yr
Recent
82 / yr
Wetter on average

Mandeville's temperature, year by year

Average temperature for each year from 1973 to 2024.

75°77°79°81°83°1973: 78.7°F1974: 79.3°F1975: 79.1°F1976: 78.4°F1977: 79.5°F1978: 77.9°F1979: 76.5°F1980: 79.5°F1981: 80.2°F1982: 80.8°F1983: 81.0°F1984: 79.9°F1985: 79.4°F1986: 79.8°F1987: 81.3°F1988: 80.9°F1989: 80.3°F1990: 80.8°F1991: 80.9°F1992: 81.0°F1993: 80.5°F1994: 80.9°F1995: 81.4°F1996: 79.3°F1997: 80.6°F1998: 82.3°F1999: 81.4°F2000: 81.4°F2001: 81.6°F2002: 81.9°F2003: 82.0°F2004: 81.7°F2005: 81.7°F2006: 81.9°F2007: 80.8°F2008: 80.4°F2009: 81.4°F2010: 80.6°F2011: 80.5°F2012: 80.8°F2013: 81.0°F2014: 80.6°F2015: 81.1°F2016: 81.0°F2017: 81.4°F2018: 81.6°F2019: 82.0°F2020: 81.8°F2021: 81.3°F2022: 81.0°F2023: 82.1°F2024: 82.2°Flong-term trend1973198019902000201020202024
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 62 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: +1.8°F+1.8JFebruary: +1.6°F+1.6FMarch: +1.7°F+1.7MApril: +1.8°F+1.8AMay: +1.5°F+1.5MJune: +1.5°F+1.5JJuly: +1.9°F+1.9JAugust: +1.8°F+1.8ASeptember: +1.8°F+1.8SOctober: +1.6°F+1.6ONovember: +1.4°F+1.4NDecember: +1.6°F+1.6D

July has warmed the most — about 1.9°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 27 years of daily observations at Montego Bay/sangste, a weather station, about 67 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →