Mesa Lab


The following weather conditions were observed at the NSF NCAR Mesa Laboratory in southwest Boulder, CO, USA. The station elevation is 1885 meters (6184 feet).

The Gill anemometer (labeled Mesa Lab Gill wind) replaces the original analog anemometer dating from the 1960s and is atop a 30-foot mast near the west end of Tower A. The standard weather station anemometer (labeled NSF NCAR Mesa Lab) has been in place since the mid-1990s and is about 6 feet above the roof near the east end of Tower A. An ongoing research project is underway to compare measurement differences between these two anemometers to determine if severe Chinook Wind events have been weakening over the years.

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Note: The current weather observation is more than thirty minutes old. The weather station may be down or undergoing maintenance, but will be returned to service as soon as possible. Thank you.

The value -99.9 represents invalid or missing data.
Most Recent Previous 24 hours
(Feb 24 2026, 12:05) Minimum Maximum
Temperature 17.6°C 10.6°C @ 04:05 17.6°C @ 11:20
Dewpoint -11.2°C -18.4°C @ 19:55 -11.2°C @ 12:05
Humidity 13% 9% @ 19:15 14% @ 04:05
Pressure 801 hPa 801 hPa @ 11:40 816 hPa @ 12:05
Aeronautical 1007 hPa 1007 hPa @ 11:40 1024 hPa @ 12:05
Rain 0.0 mm

Weather Plots (5-minute, metric units)

/net/weather/web-data/mlab/plots/ml_tdry.png /net/weather/web-data/mlab/plots/ml_rh.png /net/weather/web-data/mlab/plots/ml_cpres0.png /net/weather/web-data/mlab/plots/ml_wspd.png /net/weather/web-data/mlab/plots/ml_wdir.png /net/weather/web-data/mlab/plots/ml_raina.png /net/weather/web-data/mlw/plots/mlw_Spd.png /net/weather/web-data/mlw/plots/mlw_Dir.png
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All plots are updated every five minutes, including weekly and monthly.

This www weather station was designed at the Earth Observing Laboratory
of the NSF National Center for Atmospheric Research in Boulder, Colorado, USA.

The weather station maintainers can be reached at wwweather@eol.ucar.edu.