| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 4.22 | -0.25 |
| Feb | 3.19 | 3.30 | -0.11 |
| Mar | 3.61 | 3.76 | -0.15 |
| Apr | 3.58 | 3.79 | -0.21 |
| May | 4.63 | 4.47 | 0.16 |
| Jun | 4.55 | 4.76 | -0.21 |
| Jul | 2.82 | 2.96 | -0.14 |
| Aug | 3.42 | 3.67 | -0.25 |
| Sep | 3.86 | 3.87 | -0.01 |
| Oct | 4.49 | 4.72 | -0.23 |
| Nov | 4.13 | 4.56 | -0.43 |
| Dec | 4.40 | 4.42 | -0.02 |
46.65 | 48.50 | -1.85 |