The warmest decade on record in Manchester

Updated: 2026-09-28

If you live in Manchester and you feel that winters bite less and summers drag longer, the station record backs you up. The Met Office data from Rochdale, which runs from 1 January 1948 to 31 December 2025, puts the 2020s at the very top of the table with a mean of 10.43 °C across 2,190 observations. That is the warmest decade measured at this station, and it stands clear of the decades that came before it.

The gap is worth sitting with. The 2010s, the decade immediately before, averaged 9.65 °C over 3,650 observations. Go back another step and the 2000s sat at 9.47 °C. The 1990s drop out of the record entirely here, so the modern sequence you can read is 2000s, 2010s and 2020s — each one a step warmer than the last, ending on the 10.43 °C of the current decade.

Every decade with data at Rochdale

The Rochdale series is not unbroken, but each decade it does cover tells part of the story. Here is the full set of decade means the station holds.

Notice how the middle of the last century ran cooler. The 1960s were the coldest decade in this set, averaging 8.49 °C. The 1950s followed at 8.74 °C, and the 1970s came in at 8.89 °C. Even the early 1940s, the first entries in the series, averaged 9.43 °C — a figure that looked warm for its time but that the 2020s now sit well above.

How Manchester's decades rank against each other

Looking at the wider Manchester area, the ranking of warmest decades leaves little doubt about the pattern. The 2020s lead with a mean of 10.5 °C, and they are the only decade at the top of this ranking. The 2010s follow at 9.9 °C, and the 2000s at 9.4 °C.

The mean maximum temperature tells the same story from a different angle. The 2020s reach 14.1 °C as a mean daily maximum, against 13.4 °C in the 2010s and 12.9 °C in the 2000s. Put that beside the 1910s and 1970s, both at 12.2 °C, and the long-term shift becomes plain: Manchester's warmest daytime temperatures in the modern decade are running higher than anything the older decades recorded.

What a warmer decade actually means

A decade mean of 10.43 °C at Rochdale is an average, so no single day or season defines it. What it captures is how often the temperature sat mild rather than cold across 2,190 observations in the 2020s. That matters for the kind of weather Manchester is known for — the damp, cool grey that used to dominate. When the baseline shifts upward, the coldest nights ease, the shoulder seasons stretch, and the rare genuinely cold spells have a harder time holding on.

It is also worth keeping the geography in mind. Rochdale sits at 110 m above sea level, on the eastern side of the Manchester conurbation, and it stands in for the city's climate in this record. The station's series spans the decades shown above, and the pattern is consistent: the further forward you move in time, the warmer the reading. The 2020s are the warmest decade at this station, and it is not a close call on the station's own figures.

The takeaway for Manchester

If you want a single number to answer the question, it is 10.43 °C. That is the mean temperature the Met Office records for the 2020s at Rochdale — the warmest decade in the series from 1948 to 2025. The 2010s at 9.65 °C and the 2000s at 9.47 °C trail it, and every earlier decade with data sits below them still. For anyone planning outdoor events, tracking garden seasons, or simply curious how their city's climate has changed, the direction of travel is unambiguous.

Source: Met Office MIDAS archive. Station: Rochdale. Period: 1948–2025. Contains public sector information licensed under the Open Government Licence v3.0.

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