Monarch Sanctuary Weather Page Click here to go to the Monterey Airport Weather Page Weather Graphs for January, 2021 Temperature (ºF) Wind Speed (mph) Wind Direction Rain (inches) Atmospheric Pressure (in Hg) Humidity (%) Solar Radiation (W/m^2) Ultraviolet Radiation (Radiation Index) Click here for current weather conditions at the Sanctuary Download Archived Weather Data Monarch Sanctuary Weather Archive Monterey Airport Weather Archive