| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.52 | 0.08 |
| Feb | 2.02 | 2.08 | -0.06 |
| Mar | 2.64 | 2.70 | -0.06 |
| Apr | 3.88 | 3.84 | 0.04 |
| May | 4.48 | 4.49 | -0.01 |
| Jun | 4.61 | 4.46 | 0.15 |
| Jul | 4.40 | 4.24 | 0.16 |
| Aug | 3.85 | 3.77 | 0.08 |
| Sep | 3.05 | 3.06 | -0.01 |
| Oct | 2.95 | 2.88 | 0.07 |
| Nov | 3.13 | 3.04 | 0.09 |
| Dec | 2.40 | 2.39 | 0.01 |
40.01 | 39.47 | 0.54 |