How extreme does Greenock's weather get?

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

Based on 22 years of daily weather observations (2003–present), from the Glasgow Bishopton station 15 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 Greenock has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

89°F Jun 28, 2018

The three most extreme on record

1 89°F Jun 28, 2018

2 85°F Jul 12, 2025

3 85°F Jun 27, 2018

❄️ Coldest night

6°F Feb 19, 2004

The three most extreme on record

1 6°F Feb 19, 2004

2 8°F Feb 26, 2004

3 9°F Feb 18, 2004

🌧️ Most rain in one day

3.27 in Aug 31, 2011

The three most extreme on record

1 3.27 in Aug 31, 2011

2 2.76 in Jan 17, 2016

3 2.71 in Dec 14, 2006

In plain terms

Across the record, Greenock has reached as high as 89°F and as low as 6°F. A single day has delivered over 3 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 28 years of daily observations at Benmore: Younger Botanic Garde, a weather station, about 17 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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