| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.64 | 4.63 | 0.01 |
| Feb | 4.63 | 4.64 | -0.01 |
| Mar | 4.91 | 4.67 | 0.24 |
| Apr | 3.90 | 3.95 | -0.05 |
| May | 3.56 | 3.79 | -0.23 |
| Jun | 4.47 | 4.57 | -0.10 |
| Jul | 4.65 | 4.69 | -0.04 |
| Aug | 4.35 | 4.51 | -0.16 |
| Sep | 4.11 | 3.91 | 0.20 |
| Oct | 3.45 | 3.48 | -0.03 |
| Nov | 4.02 | 4.09 | -0.07 |
| Dec | 4.56 | 4.66 | -0.10 |
51.25 | 51.59 | -0.34 |