| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.80 | -0.17 |
| Feb | 4.35 | 4.21 | 0.14 |
| Mar | 4.73 | 4.79 | -0.06 |
| Apr | 4.98 | 5.01 | -0.03 |
| May | 5.12 | 5.41 | -0.29 |
| Jun | 4.35 | 4.45 | -0.10 |
| Jul | 4.49 | 4.81 | -0.32 |
| Aug | 3.48 | 3.43 | 0.05 |
| Sep | 3.76 | 3.69 | 0.07 |
| Oct | 3.96 | 3.88 | 0.08 |
| Nov | 3.88 | 3.81 | 0.07 |
| Dec | 4.67 | 4.74 | -0.07 |
51.40 | 52.03 | -0.63 |