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Has the climate in Nakama changed?

Nakama has warmed about 1.7°F between 1991 and 2024.

About 0.5°F per decade, measured from Nakama's official daily weather records, 1991–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Nakama's warming is broadly in line with other cities in Japan — neither unusually fast nor unusually slow.

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.

Average temperature
+1.2°F
1970s
60.4°F
Recent
61.6°F
A steady upward drift

Nakama's temperature, year by year

Average temperature for each year from 1991 to 2024.

58°60°62°64°1991: 60.6°F1992: 61.2°F1993: 59.9°F1994: 61.4°F1995: 59.3°F1996: 59.4°F1997: 60.0°F1998: 61.8°F1999: 59.8°F2000: 60.2°F2001: 60.4°F2002: 60.5°F2003: 61.0°F2004: 61.8°F2005: 60.7°F2006: 60.7°F2007: 62.0°F2008: 60.9°F2009: 60.6°F2010: 61.0°F2011: 59.8°F2012: 59.7°F2013: 61.4°F2014: 60.1°F2015: 60.7°F2016: 61.9°F2017: 60.9°F2018: 60.9°F2019: 61.7°F2020: 61.5°F2021: 62.1°F2022: 61.9°F2023: 62.1°F2024: 63.4°Flong-term trend19912000201020202024
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.

Methodology & sources

Temperature — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Yahata, about 5 km from the city centre.

How we build these numbers →