https://weatherspark.com/y/3618/Average-Weather-in-Talpa-de-Allende-Mexico-Year-RoundEdit: May not be all that accurate now that I read the fine print:
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There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Talpa de Allende.
For each station, the records are corrected for the elevation difference between that station and Talpa de Allende according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Talpa de Allende is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Talpa de Allende and a given station.
The stations contributing to this reconstruction are: Licenciado Gustavo Díaz Ordaz International Airport (42%, 56 kilometers, northwest); Playa de Oro International Airport (26%, 140 kilometers, south); and Guadalajara International Airport (33%, 158 kilometers, east).
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