| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.33 | 3.64 | -0.31 |
| Feb | 2.95 | 3.07 | -0.12 |
| Mar | 4.22 | 4.21 | 0.01 |
| Apr | 3.79 | 3.85 | -0.06 |
| May | 3.50 | 3.71 | -0.21 |
| Jun | 3.88 | 4.15 | -0.27 |
| Jul | 3.82 | 3.75 | 0.07 |
| Aug | 4.13 | 4.15 | -0.02 |
| Sep | 3.90 | 3.80 | 0.10 |
| Oct | 3.98 | 4.11 | -0.13 |
| Nov | 3.32 | 3.32 | 0.00 |
| Dec | 4.23 | 4.39 | -0.16 |
45.05 | 46.15 | -1.10 |