| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.63 | -0.09 |
| Feb | 2.93 | 2.88 | 0.05 |
| Mar | 4.14 | 4.02 | 0.12 |
| Apr | 3.67 | 3.57 | 0.10 |
| May | 3.79 | 3.65 | 0.14 |
| Jun | 4.43 | 4.47 | -0.04 |
| Jul | 4.90 | 4.80 | 0.10 |
| Aug | 4.84 | 4.67 | 0.17 |
| Sep | 5.09 | 5.29 | -0.20 |
| Oct | 3.55 | 3.63 | -0.08 |
| Nov | 3.43 | 3.37 | 0.06 |
| Dec | 3.54 | 3.46 | 0.08 |
47.85 | 47.44 | 0.41 |