| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.75 | 4.68 | 0.07 |
| Feb | 4.74 | 4.79 | -0.05 |
| Mar | 4.93 | 4.86 | 0.07 |
| Apr | 4.04 | 3.95 | 0.09 |
| May | 3.86 | 3.92 | -0.06 |
| Jun | 4.49 | 4.49 | 0.00 |
| Jul | 4.80 | 4.79 | 0.01 |
| Aug | 4.38 | 4.59 | -0.21 |
| Sep | 4.15 | 4.32 | -0.17 |
| Oct | 3.55 | 3.52 | 0.03 |
| Nov | 4.15 | 4.25 | -0.10 |
| Dec | 4.67 | 4.71 | -0.04 |
52.51 | 52.87 | -0.36 |