(Note: Clicking the floating-bar charts a second time after they appear on the screen will enlarge them even further). In general, the most extreme departures for San Diego are positive, reflecting to a large extent the occurrence of warming offshore flow episodes. Vertical lines extending upward from the zero line indicate above average means for the day (colored red), those extending downward indicate below average daily means (colored blue). The second chart down shows the day-to-day mean temperature anomalies (daily mean temperature less the corresponding long-term climatological mean). The bars depict the varying diurnal, synoptic, long-wave, seasonal, and sea-surface temperature anomaly influences on San Diego temperature over time, and they are deliberately adjoined with no spaces in-between, creating a sort of “signature” appearance. Superimposed on the bars are two line traces, the upper one connecting 1875 to present mean daily maxima, the lower one mean daily minima. The uppermost chart for a given year’s page (accessed by the links below) are “floating-bars” of the year’s daily maxima and minima temperatures. Record Coldest Max/Min Temperature Days, by Calendar Day (1875-2021) Record Warmest Max/Min Temperature Days, by Calendar Day (1875-2021). K-Means Cluster Analysis of San Diego Lindbergh Field Resultant Wind Patterns.Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year.SAN DIEGO MEAN AND RECORD DAILY MAX/MIN TEMPERATURES BY MONTH San Diego Season-to-Date Rainfall for 2022-23 New (6/30/23)Ģ022 Daily Temperature and Precipitation for San DiegoĢ021 Daily Temperature and Precipitation for San DiegoĢ020 Daily Temperatures and Precipitation for San DiegoĢ019 Daily Temperature and Precipitation for San DiegoĢ018 Daily Temperature and Precipitation for San DiegoĢ014 Daily Temperatures and Precipitation for San Diego (Warmest in History) Last update: e-mail contact: CLIMATE OVERVIEW GRAPHSĢ023 Daily Temperature and Precipitation for San Diego New (6/30/23) Data were accessed from the Utah Climate Center and NCDC Online sites, plus that of the NWS-San Diego site. A small number of missing data, comprising 45 days, or ~.001 % of the record, were filled using observations from nearby Chula Vista. For the pre-Lindbergh Field era, thermometer placements ranged from 20 ft to 94 ft above ground level, those at Lindbergh Field form 6 to 37 feet above groundlevel. The latter is about 1.5 miles to the northwest of Downtown, and about 30 feet lower in elevation (~ 15 feet msl). The 1875 to 2023 period of record includes observations from eight different but relatively nearby Weather Service Office locations downtown (through 1926) and three at Lindbergh Field (1927-present). Included are summary overview charts followed by 148 year-to-year graphs depicting daily temperatures, temperature anomalies, and precipitation. The following is a graphical climatology of San Diego, California temperatures and precipitation, from 1875 into 2023. Graphical Climatology of Downtown San Diego: Daily Temperatures and Rainfall, by Year (1875 – Present)
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