| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.06 | 4.05 | 0.01 |
| Feb | 3.43 | 3.40 | 0.03 |
| Mar | 4.65 | 4.74 | -0.09 |
| Apr | 4.50 | 4.55 | -0.05 |
| May | 3.59 | 3.59 | 0.00 |
| Jun | 4.23 | 4.36 | -0.13 |
| Jul | 3.70 | 3.82 | -0.12 |
| Aug | 4.14 | 4.25 | -0.11 |
| Sep | 4.28 | 4.17 | 0.11 |
| Oct | 4.85 | 4.84 | 0.01 |
| Nov | 4.16 | 4.12 | 0.04 |
| Dec | 4.82 | 4.93 | -0.11 |
50.41 | 50.82 | -0.41 |