| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.65 | 0.18 |
| Feb | 3.44 | 3.28 | 0.16 |
| Mar | 4.39 | 4.11 | 0.28 |
| Apr | 4.41 | 4.07 | 0.34 |
| May | 4.08 | 4.15 | -0.07 |
| Jun | 4.76 | 4.78 | -0.02 |
| Jul | 4.47 | 4.40 | 0.07 |
| Aug | 4.60 | 4.42 | 0.18 |
| Sep | 4.86 | 4.94 | -0.08 |
| Oct | 5.41 | 5.29 | 0.12 |
| Nov | 4.15 | 3.94 | 0.21 |
| Dec | 4.80 | 4.71 | 0.09 |
53.20 | 51.74 | 1.46 |