![Graph of daily temperature departures in Boulder, CO](/sites/default/files/2022-01/ET_climate-CO-fire-temperature_graph_20220105.png)
File name: ET_climate-CO-fire-temperature_graph_20220105.png
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Daily average temperatures at the Boulder, Colorado, weather station in 2021 compared to average. December 2021 wasn’t just a little warmer than average. Temperatures were 10 or more degrees Fahrenheit warmer than average on half the days of the month. NOAA Climate.gov image, based on data from the NWS Boulder Weather Forecast Office.