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Weather extremes

How extreme does Ruiru's weather get?

The hottest, coldest, wettest and snowiest days Ruiru has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Jomo Kenyatta Intl station 20 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Ruiru has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
101°F Feb 11, 2006

That is about 18°F hotter than a normal February afternoon in Ruiru (typical high near 83°F).

The three most extreme on record

1 101°F Feb 11, 2006
2 91°F Mar 5, 1987
3 91°F Oct 18, 2001
❄️ Coldest night
32°F Aug 21, 2008

About 21°F colder than a normal August night in Ruiru (typical low near 53°F).

The three most extreme on record

1 32°F Aug 21, 2008
2 35°F Sep 3, 1991
3 35°F Sep 7, 1992
🌧️ Most rain in one day
13.84 in Feb 13, 2010

More rain in a single day than Ruiru usually gets in the whole month of February (typical February total about 2.7 in).

The three most extreme on record

1 13.84 in Feb 13, 2010
2 12.28 in Nov 7, 1980
3 10.55 in May 13, 1990

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

10°30°50°70°90°110°130° all-time high 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Ruiru's record heat sits well above even a hot day for the season — February's 101°F is about 18°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Ruiru's warmest days reach the low 80s°F and its coldest nights drop to the low 50s°F. But across the record it has gone as high as 101°F and as low as 32°F. A single day has delivered over 14 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 20 years of daily observations at Jomo Kenyatta Intl, a weather station, about 20 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →