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Has the climate in Seaside changed?

Seaside has warmed about 0.9°F between 1971 and 2017.

About 0.2°F per decade, measured from Seaside's official daily weather records, 1971–2017. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Seaside's climate has warmed more slowly than most other cities in United States.

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
1 more night
1970s
8 / yr
Recent
9 / yr
Colder winters — more frosts
Average temperature
+0.7°F
1970s
57.5°F
Recent
58.2°F
A steady upward drift
Hot days above 90°F
2 more days
1970s
5 / yr
Recent
7 / yr
More days of serious heat
Rainy days
17 more days
1970s
39 / yr
Recent
56 / yr
Wetter on average

Seaside's temperature, year by year

Average temperature for each year from 1971 to 2017.

55°57°59°61°1971: 56.3°F1972: 57.5°F1973: 56.7°F1974: 56.6°F1975: 56.8°F1976: 58.2°F1977: 56.5°F1978: 57.8°F1979: 58.4°F1980: 58.0°F1981: 58.1°F1982: 56.8°F1983: 60.2°F1984: 58.4°F1985: 56.7°F1986: 59.5°F1987: 59.1°F1988: 60.3°F1989: 57.5°F1990: 56.9°F1991: 57.4°F1992: 59.8°F1993: 59.5°F1994: 58.2°F1995: 60.5°F1996: 58.8°F1997: 59.4°F1998: 57.1°F1999: 56.4°F2000: 57.5°F2001: 57.0°F2002: 58.1°F2003: 60.4°F2004: 58.5°F2005: 58.3°F2006: 57.6°F2007: 56.9°F2008: 56.9°F2009: 57.4°F2010: 57.0°F2011: 56.8°F2012: 56.8°F2013: 57.6°F2014: 60.3°F2015: 60.1°F2016: 59.3°F2017: 59.0°Flong-term trend197119801990200020102017
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.

-1.0°-0.5°0.0°+0.5°+1.0°January: +0.5°F+0.5JFebruary: -0.6°F-0.6FMarch: +0.1°F+0.1MApril: -0.4°F-0.4AMay: -0.3°F-0.3MJune: -0.5°F-0.5JJuly: -0.4°F-0.4JAugust: -0.5°F-0.5ASeptember: -0.4°F-0.4SOctober: +0.1°F+0.1ONovember: +0.0°F+0.0NDecember: -0.5°F-0.5D

February has cooled the most — about 0.6°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Salinas #2 (NOAA GHCN station USC00047668), about 17 km from the city centre.

How we build these numbers →