The Historical Climate — Wet Bulb Temperature indicator shows the historical trend of wet bulb temperature at 2 metres above ground. For each day, mean, maximum, and minimum values are provided. Wet bulb temperature combines temperature and humidity effects to estimate heat stress on organisms.
This parameter is directly related to evaporative cooling capacity: when wet bulb temperature approaches body temperature, sweat-based cooling becomes ineffective, making it critical for heat stress assessment in agriculture, wildlife, and pollinators.
Data come from the Open-Meteo Historical Weather API. The variable used is wet_bulb_temperature_2m (wet bulb temperature at 2m, daily mean, max, min). Data are interpolated to the site's position.
| Code | Name | Provider | Type | Coverage | Availability |
|---|---|---|---|---|---|
WRD_OPNMT_99 | Open-Meteo Historical Weather | Open-Meteo | db | Global | 1940 - present |
Historical trend of 2m wet-bulb temperature. Open-Meteo variable: wet_bulb_temperature_2m (daily average, max, min). Source: Open-Meteo Historical Weather API. Unit: °C.