| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.43 | 0.16 |
| Feb | 3.07 | 3.10 | -0.03 |
| Mar | 4.12 | 4.22 | -0.10 |
| Apr | 4.08 | 4.14 | -0.06 |
| May | 3.71 | 3.76 | -0.05 |
| Jun | 4.53 | 4.93 | -0.40 |
| Jul | 4.10 | 4.08 | 0.02 |
| Aug | 4.55 | 4.61 | -0.06 |
| Sep | 4.31 | 4.31 | 0.00 |
| Oct | 4.84 | 4.85 | -0.01 |
| Nov | 3.81 | 3.83 | -0.02 |
| Dec | 4.39 | 4.45 | -0.06 |
49.10 | 49.71 | -0.61 |