| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.60 | -0.13 |
| Feb | 2.88 | 2.95 | -0.07 |
| Mar | 4.11 | 4.20 | -0.09 |
| Apr | 3.73 | 3.85 | -0.12 |
| May | 4.01 | 3.99 | 0.02 |
| Jun | 4.32 | 4.50 | -0.18 |
| Jul | 4.86 | 4.99 | -0.13 |
| Aug | 4.42 | 4.46 | -0.04 |
| Sep | 4.12 | 4.31 | -0.19 |
| Oct | 4.13 | 4.19 | -0.06 |
| Nov | 3.29 | 3.38 | -0.09 |
| Dec | 4.31 | 4.39 | -0.08 |
47.65 | 48.81 | -1.16 |