| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.60 | -0.02 |
| Feb | 2.88 | 3.10 | -0.22 |
| Mar | 4.17 | 4.32 | -0.15 |
| Apr | 4.17 | 4.33 | -0.16 |
| May | 3.75 | 3.55 | 0.20 |
| Jun | 4.33 | 4.35 | -0.02 |
| Jul | 3.94 | 3.88 | 0.06 |
| Aug | 4.29 | 4.08 | 0.21 |
| Sep | 4.29 | 4.35 | -0.06 |
| Oct | 4.64 | 4.67 | -0.03 |
| Nov | 3.91 | 3.93 | -0.02 |
| Dec | 4.36 | 4.57 | -0.21 |
48.31 | 48.73 | -0.42 |