| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.53 | 1.69 | -0.16 |
| Feb | 1.30 | 1.48 | -0.18 |
| Mar | 1.84 | 1.97 | -0.13 |
| Apr | 3.41 | 3.54 | -0.13 |
| May | 3.64 | 3.71 | -0.07 |
| Jun | 4.00 | 3.98 | 0.02 |
| Jul | 3.48 | 3.40 | 0.08 |
| Aug | 3.34 | 3.40 | -0.06 |
| Sep | 2.57 | 2.62 | -0.05 |
| Oct | 2.81 | 2.87 | -0.06 |
| Nov | 2.10 | 2.11 | -0.01 |
| Dec | 1.75 | 1.90 | -0.15 |
31.77 | 32.67 | -0.90 |