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Has the climate in Jimma changed?

Jimma has cooled about 0.7°F between 1971 and 1988.

About 0.4°F per decade, measured from Jimma's official daily weather records, 1971–1988. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Jimma'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
2 fewer nights
1970s
2 / yr
Recent
0 / yr
Milder winters — fewer frosts
Average temperature
−0.4°F
1970s
65.6°F
Recent
65.2°F
A small downward drift
Hot days above 90°F
2 fewer days
1970s
5 / yr
Recent
3 / yr
Slightly fewer hot days
Rainy days
16 more days
1970s
171 / yr
Recent
187 / yr
Wetter on average

Jimma's temperature, year by year

Average temperature for each year from 1971 to 1988.

63°65°67°1971: 65.1°F1972: 66.0°F1973: 66.3°F1974: 65.0°F1975: 65.4°F1976: 65.6°F1977: 66.9°F1978: 66.3°F1979: 66.3°F1980: 66.3°F1981: 65.5°F1982: 66.0°F1983: 65.7°F1984: 64.8°F1985: 65.1°F1986: 64.7°F1987: 65.5°F1988: 65.1°Flong-term trend197119801988
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°+1.5°+2.0°+2.5°+3.0°May: +3.0°F+3.0MJune: +2.0°F+2.0JOctober: +3.0°F+3.0ONovember: +0.7°F+0.7N

May has warmed the most — about 3.0°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 →