| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.75 | -0.23 |
| Feb | 2.92 | 3.01 | -0.09 |
| Mar | 3.84 | 3.93 | -0.09 |
| Apr | 3.43 | 3.70 | -0.27 |
| May | 3.81 | 3.85 | -0.04 |
| Jun | 4.51 | 4.58 | -0.07 |
| Jul | 5.48 | 5.36 | 0.12 |
| Aug | 5.32 | 5.22 | 0.10 |
| Sep | 5.06 | 4.84 | 0.22 |
| Oct | 3.93 | 4.19 | -0.26 |
| Nov | 3.18 | 3.47 | -0.29 |
| Dec | 3.32 | 3.60 | -0.28 |
48.32 | 49.50 | -1.18 |