| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.70 | 3.33 | -0.63 |
| Feb | 2.27 | 2.60 | -0.33 |
| Mar | 2.49 | 2.91 | -0.42 |
| Apr | 2.91 | 3.18 | -0.27 |
| May | 3.43 | 3.45 | -0.02 |
| Jun | 3.97 | 3.98 | -0.01 |
| Jul | 4.24 | 4.24 | 0.00 |
| Aug | 3.70 | 3.71 | -0.01 |
| Sep | 3.47 | 3.67 | -0.20 |
| Oct | 4.07 | 4.32 | -0.25 |
| Nov | 3.18 | 3.47 | -0.29 |
| Dec | 3.31 | 3.75 | -0.44 |
39.74 | 42.61 | -2.87 |