Climate data from NOAA/NWS Co-op Network stations is complied in Table 3.13-1 and the locations are shown on Figure 3.13-3.  Figure 3.13-3 also shows precipitation contour data from the Spatial Climate Analysis Service (SCAS) at Oregon State University.  The Upper San Pedro Basin does not contain Evaporation Pan, AZMET and 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 climate data source web page click its header.

NOAA/NWS Co-op Network

• Refer to Table 3.13-1A

• There are seven NOAA/NWS Co-op network climate stations in the basin.  The average monthly maximum temperature  occurs in July at all stations and ranges between 74.6°F at Canelo 1 NW to 81.0°F at Benson.  The average monthly minimum temperature occurs in December or January and ranges between 43.3°F at Canelo 1 NW to 47.8°F at Tombstone.

• Highest average seasonal rainfall occurs in the summer (July – September).  For the period of record used, the highest annual rainfall is 21.18 inches at Coronado N.M. and 12.34 inches at Benson.

SCAS Precipitation Data

• See Figure 3.13-3
• Additional precipitation data shows rainfall as high as 38 inches at the Huachuca Mountains south of Sierra Vista and as low as 12 inches in the vicinity of Tombstone.

Click to view Table 3.13-1 Climate Data for the

Upper San Pedro Basin

Click to view Figure 3.13-3 Upper San Pedro BasinMeteorological Stations and Annual Precipitation

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