| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.74 | -0.26 |
| Feb | 2.90 | 3.15 | -0.25 |
| Mar | 4.17 | 4.22 | -0.05 |
| Apr | 4.19 | 4.11 | 0.08 |
| May | 3.86 | 3.97 | -0.11 |
| Jun | 4.55 | 4.62 | -0.07 |
| Jul | 4.32 | 4.30 | 0.02 |
| Aug | 4.20 | 4.46 | -0.26 |
| Sep | 4.51 | 4.67 | -0.16 |
| Oct | 4.56 | 4.64 | -0.08 |
| Nov | 3.72 | 3.88 | -0.16 |
| Dec | 4.18 | 4.51 | -0.33 |
48.64 | 50.27 | -1.63 |