| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.69 | -0.16 |
| Feb | 2.70 | 2.94 | -0.24 |
| Mar | 4.02 | 4.18 | -0.16 |
| Apr | 4.00 | 4.05 | -0.05 |
| May | 4.00 | 4.07 | -0.07 |
| Jun | 4.69 | 4.85 | -0.16 |
| Jul | 4.50 | 4.51 | -0.01 |
| Aug | 4.42 | 4.57 | -0.15 |
| Sep | 4.46 | 4.44 | 0.02 |
| Oct | 4.54 | 4.65 | -0.11 |
| Nov | 3.63 | 3.73 | -0.10 |
| Dec | 4.34 | 4.51 | -0.17 |
48.83 | 50.19 | -1.36 |