| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 5.35 | 5.21 | 0.14 | 
| Feb | 5.23 | 5.06 | 0.17 | 
| Mar | 5.34 | 5.17 | 0.17 | 
| Apr | 5.20 | 5.19 | 0.01 | 
| May | 4.50 | 4.51 | -0.01 | 
| Jun | 4.33 | 4.41 | -0.08 | 
| Jul | 5.13 | 4.67 | 0.46 | 
| Aug | 3.75 | 3.76 | -0.01 | 
| Sep | 3.62 | 3.82 | -0.20 | 
| Oct | 3.60 | 3.47 | 0.13 | 
| Nov | 4.45 | 4.47 | -0.02 | 
| Dec | 5.86 | 5.80 | 0.06 | 
| 56.36 | 55.54 | 0.82 |