| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.81 | 3.45 | 0.36 |
| Feb | 3.01 | 2.96 | 0.05 |
| Mar | 3.92 | 3.82 | 0.10 |
| Apr | 4.27 | 4.22 | 0.05 |
| May | 4.69 | 4.46 | 0.23 |
| Jun | 4.58 | 4.52 | 0.06 |
| Jul | 4.83 | 4.63 | 0.20 |
| Aug | 4.43 | 4.24 | 0.19 |
| Sep | 4.22 | 3.96 | 0.26 |
| Oct | 3.40 | 3.04 | 0.36 |
| Nov | 3.40 | 3.27 | 0.13 |
| Dec | 3.68 | 3.68 | 0.00 |
48.24 | 46.25 | 1.99 |