Barcelona Temperature Tracker
Compare recent daily mean temperatures at Barcelona Fabra Observatory with historical temperature ranges and selectable 30-year climatological baselines. The tracker uses observations supplied by the Agencia Estatal de Meteorología (AEMET) and covers the period from 1926 onward.
Temperature observations are owned and supplied by the Agencia Estatal de Meteorología (AEMET). This independent visualization was prepared by XpertScientific. No participation, sponsorship, or endorsement by AEMET is implied.
Data source and methodology
Station and source data
- Station
- Barcelona, Fabra (AEMET station 0200E)
- Coordinates
- 41.4183° N, 2.1242° E
- Altitude
- 408 m above sea level
- Temperature record
- 1 January 1926 onward
Daily observations were obtained from AEMET. The latest value currently included is . AEMET's climatological database may publish daily values several days after the observation date.
The tracker uses the AEMET daily mean-temperature field (tmed).
Across the downloaded Fabra record, this value is equivalent to (Tmin + Tmax)/2, subject to AEMET's one-decimal rounding. Values are displayed as supplied: missing observations remain gaps, and no interpolation, outlier removal, or substitution from another station is applied.
How the chart is calculated
Daily temperature displays either the original daily values or a 7- or 15-day trailing mean. A trailing mean averages the plotted date and the preceding 6 or 14 days. It is shown only when the plotted date itself has an observation and at least 70% of the selected window contains valid data.
The selected historical reference defines the grey distribution. For every calendar date, the chart calculates the median and the 10th–90th percentile range across the selected historical years after applying the chosen smoothing. Missing values are excluded from that date's calculation.
Daily anomaly is the temperature for a date minus the mean for that same calendar date during the selected 30-year baseline. The zero line therefore represents the selected baseline climatology.
Cumulative year-to-date mean anomaly is the mean of all available daily anomalies from 1 January through the plotted date. It is already cumulative, so no additional smoothing is applied. The displayed ranking compares the latest year with years having at least 90% valid coverage through the same date.
Leap day has its own calendar position and is calculated only from leap years. Individual annual curves are not spatial averages: they represent this single, elevated observation site and should not be interpreted as the mean temperature of the entire Barcelona metropolitan area.
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