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Prescott AMA Climate

Climate data from NOAA/NWS Co-op Network stations are complied in Table 8.3-1 and the locations are shown on Figure 8.3-3.  Figure 8.3-3 also shows precipitation contour data from the Spatial Climate Analysis Service (SCAS) at Oregon State University.  The Prescott AMA does not contain Evaporation Pan or AZMET stations.  More detailed information on climate is found in Section 8.0.3.  A description of the climate data sources and methods is found in Volume 1, Appendix A.

NOAA/NWS Co-op Network

  • Refer to Table 8.3-1A
  • There are four NOAA/NWS Co-op Network stations in the AMA.  The average monthly maximum temperature occurs in July and is between 73.4°F and 75.6°F. The average monthly minimum temperature occurs in December or January and is between 36.9°F and 37.9°F.
  • Highest average seasonal rainfall occurs in the summer (July-September).  For the period of record used, the highest average annual rainfall is 19.19 inches at the Prescott station and the lowest is 12.82 inches at the Chino Valley station.


  • Refer to Table 8.3-1D
  • There is one SNOTEL/Snocourse station in the AMA, Copper Basin Divide.  The higest average snowpack was in March.

SCAS Precipitation Data

  • See Figure 8.3-3
  • Additional precipitation data shows average annual rainfall as high as 30 inches on the eastern AMA boundary and as low as 12 inches in the northern portion of the AMA.

Click to view Table 8.3-1

Table 8.3-1 Climate of the Prescott AMA

Click to view Figure 8.3-3

Figure 8.3-3 Prescott AMA Meteorological Stations and Annual Precipitation


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