| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.09 | 4.28 | -0.19 |
| Feb | 3.25 | 3.30 | -0.05 |
| Mar | 3.65 | 3.82 | -0.17 |
| Apr | 3.64 | 3.84 | -0.20 |
| May | 4.56 | 4.50 | 0.06 |
| Jun | 4.81 | 4.89 | -0.08 |
| Jul | 3.20 | 3.04 | 0.16 |
| Aug | 3.60 | 3.82 | -0.22 |
| Sep | 3.91 | 4.00 | -0.09 |
| Oct | 4.88 | 4.75 | 0.13 |
| Nov | 4.25 | 4.62 | -0.37 |
| Dec | 4.32 | 4.45 | -0.13 |
48.16 | 49.31 | -1.15 |