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Has the climate in Georgetown changed?

How Georgetown's climate has changed

About 0.2°F per decade, measured from Georgetown's official daily weather records, 1971–2001. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Georgetown's climate has warmed more slowly than most other cities across Africa.

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
−0.3°F
1970s
79.4°F
Recent
79.1°F
A small downward drift
Hot days above 90°F
12 fewer days
1970s
12 / yr
Recent
0 / yr
Slightly fewer hot days
Rainy days
11 more days
1970s
42 / yr
Recent
53 / yr
Wetter on average

Georgetown's temperature, year by year

Average temperature for each year from 1971 to 2001.

76°78°80°82°84°1971: 78.3°F1972: 79.0°F1973: 82.2°F1974: 79.2°F1975: 78.5°F1990: 78.3°F1991: 78.1°F1992: 77.1°F1993: 78.7°F1994: 78.3°F1995: 78.7°F1996: 78.9°F1997: 78.0°F1998: 78.9°F1999: 79.0°F2000: 78.8°F2001: 80.8°Flong-term trend1971199020002001
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 3 fewer 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.

-0.5°0.0°+0.5°+1.0°January: -0.0°F-0.0JFebruary: +0.0°F+0.0FMarch: -0.0°F-0.0MApril: -0.1°F-0.1AMay: +0.1°F+0.1MJune: +0.0°F+0.0JJuly: -0.0°F-0.0JAugust: -0.1°F-0.1ASeptember: -0.1°F-0.1SOctober: +0.1°F+0.1ONovember: +0.1°F+0.1NDecember: +0.1°F+0.1D

April has cooled the most — about 0.1°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 10 years of daily observations at Wide Awake Field (A, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →