| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 4.15 | -0.20 |
| Feb | 3.54 | 3.63 | -0.09 |
| Mar | 4.89 | 5.05 | -0.16 |
| Apr | 4.17 | 4.30 | -0.13 |
| May | 3.43 | 3.43 | 0.00 |
| Jun | 3.42 | 3.34 | 0.08 |
| Jul | 2.67 | 2.74 | -0.07 |
| Aug | 3.40 | 3.55 | -0.15 |
| Sep | 4.07 | 3.84 | 0.23 |
| Oct | 4.69 | 4.64 | 0.05 |
| Nov | 4.20 | 4.16 | 0.04 |
| Dec | 4.82 | 5.02 | -0.20 |
47.25 | 47.85 | -0.60 |