| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.51 | 4.83 | -0.32 |
| Feb | 4.69 | 4.85 | -0.16 |
| Mar | 5.13 | 5.02 | 0.11 |
| Apr | 4.47 | 4.71 | -0.24 |
| May | 3.82 | 4.10 | -0.28 |
| Jun | 4.57 | 4.15 | 0.42 |
| Jul | 4.56 | 4.96 | -0.40 |
| Aug | 3.79 | 3.65 | 0.14 |
| Sep | 3.50 | 3.63 | -0.13 |
| Oct | 3.06 | 2.91 | 0.15 |
| Nov | 3.90 | 3.91 | -0.01 |
| Dec | 4.98 | 5.19 | -0.21 |
50.98 | 51.91 | -0.93 |