| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.60 | -0.11 |
| Feb | 2.86 | 2.87 | -0.01 |
| Mar | 4.19 | 4.15 | 0.04 |
| Apr | 3.69 | 3.65 | 0.04 |
| May | 3.66 | 3.74 | -0.08 |
| Jun | 4.39 | 4.33 | 0.06 |
| Jul | 4.67 | 4.72 | -0.05 |
| Aug | 4.62 | 4.53 | 0.09 |
| Sep | 4.77 | 5.33 | -0.56 |
| Oct | 3.47 | 3.49 | -0.02 |
| Nov | 3.35 | 3.36 | -0.01 |
| Dec | 3.58 | 3.63 | -0.05 |
46.74 | 47.40 | -0.66 |