Climate data from NOAA/ NWS Co-op Network stations are complied in Table 3.8-1 and their locations are shown on Figure 3.8-3.  Figure 3.8-3 also shows precipitation contour data from the Spatial Climate Analysis Service (SCAS) at Oregon State University.  The Lower San Pedro Basin does not contain Evaporation Pan, AZMET and SNOTEL/Snowcourse stations.  More detailed information on climate in the planning are 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 3.8-1A  

• There are six NOAA/NWS Co-op network climate stations in the basin.  The average monthly maximum temperature occurs in July and ranges from 64.9°F at Palisade Ranger Station to 86.4°F at Winkleman 6 S.  The average monthly minimum temperature occurs in January and December and ranges from 34.5°F at Palisade Ranger Station to 47.6°F at Cascabel.

• Highest average seasonal rainfall occurs in the summer (July-September).  For the period of record used, highest annual rainfall is 32.24 inches at Palisade Ranger Station and the lowest is 14.33 inches at Cascabel. 

SCAS Precipitation Data

• See Figure 3.8-3
• Additional precipitation data shows rainfall as high as 36 inches at the Santa Catalina Mountains southwest of San Manuel and as low as 14 inches at the San Pedro River Valley in the vicinity of Dudleyville.

Click to view Table 3.8-1 Climate Data for the

Lower San Pedro Basin

Click to view Figure 3.8-3 Lower San Pedro Basin

Meteorological Stations and Annual Precipitation

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