| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.57 | 0.14 |
| Feb | 3.35 | 3.27 | 0.08 |
| Mar | 4.33 | 4.25 | 0.08 |
| Apr | 4.32 | 4.19 | 0.13 |
| May | 3.61 | 3.56 | 0.05 |
| Jun | 4.39 | 4.13 | 0.26 |
| Jul | 3.67 | 3.69 | -0.02 |
| Aug | 4.10 | 4.02 | 0.08 |
| Sep | 4.07 | 3.87 | 0.20 |
| Oct | 4.97 | 4.88 | 0.09 |
| Nov | 3.96 | 3.70 | 0.26 |
| Dec | 4.47 | 4.53 | -0.06 |
48.95 | 47.66 | 1.29 |