| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.02 | 4.99 | 0.03 |
| Feb | 4.52 | 4.60 | -0.08 |
| Mar | 4.91 | 5.16 | -0.25 |
| Apr | 4.71 | 4.90 | -0.19 |
| May | 4.05 | 4.40 | -0.35 |
| Jun | 4.80 | 4.31 | 0.49 |
| Jul | 3.65 | 3.63 | 0.02 |
| Aug | 3.62 | 3.48 | 0.14 |
| Sep | 3.74 | 3.69 | 0.05 |
| Oct | 4.47 | 4.54 | -0.07 |
| Nov | 4.51 | 4.44 | 0.07 |
| Dec | 5.24 | 5.31 | -0.07 |
53.24 | 53.45 | -0.21 |