| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.37 | 3.26 | 0.11 | 
| Feb | 3.13 | 3.05 | 0.08 | 
| Mar | 4.48 | 4.18 | 0.30 | 
| Apr | 5.46 | 5.14 | 0.32 | 
| May | 5.01 | 4.92 | 0.09 | 
| Jun | 4.54 | 4.50 | 0.04 | 
| Jul | 3.91 | 3.83 | 0.08 | 
| Aug | 3.33 | 3.08 | 0.25 | 
| Sep | 3.45 | 3.16 | 0.29 | 
| Oct | 3.60 | 3.43 | 0.17 | 
| Nov | 4.09 | 4.06 | 0.03 | 
| Dec | 3.50 | 3.51 | -0.01 | 
| 47.87 | 46.12 | 1.75 |