| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.60 | 4.49 | 0.11 |
| Feb | 4.48 | 4.50 | -0.02 |
| Mar | 4.69 | 4.67 | 0.02 |
| Apr | 3.66 | 3.63 | 0.03 |
| May | 3.59 | 3.40 | 0.19 |
| Jun | 4.70 | 4.90 | -0.20 |
| Jul | 4.08 | 4.35 | -0.27 |
| Aug | 4.91 | 4.56 | 0.35 |
| Sep | 3.94 | 3.99 | -0.05 |
| Oct | 3.28 | 3.33 | -0.05 |
| Nov | 3.80 | 3.77 | 0.03 |
| Dec | 4.62 | 4.68 | -0.06 |
50.35 | 50.27 | 0.08 |