| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.08 | 4.09 | -0.01 |
| Feb | 3.76 | 3.84 | -0.08 |
| Mar | 4.48 | 4.46 | 0.02 |
| Apr | 3.33 | 3.43 | -0.10 |
| May | 3.42 | 3.51 | -0.09 |
| Jun | 4.11 | 4.05 | 0.06 |
| Jul | 3.73 | 3.73 | 0.00 |
| Aug | 3.88 | 4.10 | -0.22 |
| Sep | 3.43 | 3.55 | -0.12 |
| Oct | 3.15 | 3.11 | 0.04 |
| Nov | 3.55 | 3.67 | -0.12 |
| Dec | 4.38 | 4.40 | -0.02 |
45.30 | 45.94 | -0.64 |