| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.62 | -0.16 |
| Feb | 2.72 | 2.88 | -0.16 |
| Mar | 3.91 | 4.15 | -0.24 |
| Apr | 3.84 | 3.91 | -0.07 |
| May | 4.06 | 4.08 | -0.02 |
| Jun | 4.35 | 4.49 | -0.14 |
| Jul | 4.87 | 4.86 | 0.01 |
| Aug | 4.69 | 4.38 | 0.31 |
| Sep | 4.44 | 4.35 | 0.09 |
| Oct | 4.23 | 4.29 | -0.06 |
| Nov | 3.29 | 3.36 | -0.07 |
| Dec | 4.15 | 4.38 | -0.23 |
48.01 | 48.75 | -0.74 |