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Securing Arizona's Water Future
Climate of the Douglas Basin

Climate data from NOAA/ NWS Co-op Network stations are complied in Table 3.5-1 and their locations are shown on Figure 3.5-3.  Figure 3.5-3 also shows precipitation contour data from the Spatial Climate Analysis Service (SCAS) at Oregon State University.  The Douglas Basin does not contain Evaporation Pan, AZMET or SNOTEL/Snowcourse stations.  More detailed information on climate in the planning area is found in Section 3.0.3.  A description of the climate data sources and methods is found in Volume 1, Appendix A.  For a link to the web site for each climate data source click its header.

NOAA/NWS Co-op Network

  • Refer to Table 3.5-1.
  • There are four NOAA/NWS Co-op network climate stations in the basin.  The average monthly maximum temperature occurs in July and ranges from 76.5°F at Bisbee to 80.4°F at Douglas Smelter.  The average monthly minimum occurs in December and is about 46°F for all four stations.
  • Highest average seasonal rainfall occurs in the summer (July - September).  For the period of record used, the highest annual rainfall is 22.75 inches, at Bisbee and the lowest is 13.76 inches at Douglas FAA AP.

SCAS Precipitation Data

  • Additional annual precipitation data shows rainfall as high as 26 inches at the Mule Mountains, north of the town of Bisbee, and as low as 10 inches at the Sulphur Springs Valley in the vicinity of Elfrida.

Click to view Table 3.5-1

Click for Table 3.5-1 Climate Data

for the Douglas Basin

Click to view Figure 3.5-3

Click for Figure 3.5-3 Douglas Basin

Meteorological Stations and Annual Precipitation

 

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Old town Bisbee Alfalfa field outside Elfrida