| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.36 | 0.14 |
| Feb | 2.69 | 2.62 | 0.07 |
| Mar | 3.60 | 3.59 | 0.01 |
| Apr | 3.96 | 4.12 | -0.16 |
| May | 4.02 | 4.15 | -0.13 |
| Jun | 4.63 | 4.99 | -0.36 |
| Jul | 4.22 | 4.39 | -0.17 |
| Aug | 4.40 | 4.70 | -0.30 |
| Sep | 4.70 | 4.83 | -0.13 |
| Oct | 4.62 | 4.69 | -0.07 |
| Nov | 3.50 | 3.74 | -0.24 |
| Dec | 3.68 | 3.86 | -0.18 |
47.52 | 49.04 | -1.52 |