| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.76 | -0.29 |
| Feb | 2.95 | 3.27 | -0.32 |
| Mar | 4.13 | 4.29 | -0.16 |
| Apr | 4.14 | 4.29 | -0.15 |
| May | 3.84 | 4.02 | -0.18 |
| Jun | 4.46 | 4.54 | -0.08 |
| Jul | 4.36 | 4.37 | -0.01 |
| Aug | 4.24 | 4.64 | -0.40 |
| Sep | 4.51 | 4.66 | -0.15 |
| Oct | 4.62 | 4.75 | -0.13 |
| Nov | 3.87 | 3.97 | -0.10 |
| Dec | 4.21 | 4.56 | -0.35 |
48.80 | 51.12 | -2.32 |