WeatherArb calculates Z-Score, HDD and CDD against the NASA POWER 25-year baseline for Umeå (63.83°N, 20.26°E). EN ISO 15927 standard.
Cos'è lo Z-Score climatico?
Misura quante deviazioni standard la temperatura attuale di Umeå si allontana dalla media storica dello stesso mese. Sopra +2σ indica caldo anomalo raro; sotto -2σ indica freddo anomalo.
Cosa sono HDD e CDD?
Heating e Cooling Degree Days, standard EN ISO 15927, misurano la domanda energetica per riscaldamento/raffrescamento confrontando la temperatura con una soglia di 18°C.
Con quale frequenza si aggiornano i dati di Umeå?
WeatherArb aggiorna i dati meteo di Umeå ogni ora tramite MET Norway, NOAA NWS e WeatherAPI.
Weather Umeå Today — Temperature and Climate Anomalies
WeatherArb monitors current temperature in Umeå against the NASA POWER 25-year climate baseline. When an extreme heat event, unusual rainfall or cold snap occurs, the Z-Score is automatically updated.
Humidity, wind speed and feels-like temperature in Umeå are updated hourly. During heatwave conditions (July: elevated heat anomaly risk), the anomaly level rises to EXTREME or CRITICAL — a statistically rare climate event.
A Changing Climate — Umeå
In the Umeå area, the mean annual temperature has risen by 0.7°C since 2001. The highest recorded value was 31.0°C (2019-07-27).
Methodology: Data comes from the NASA POWER reanalysis (MERRA-2) at roughly 50 km grid resolution: figures describe the surrounding area rather than a single urban station.