| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.00 | 4.05 | -0.05 |
| Feb | 3.55 | 3.50 | 0.05 |
| Mar | 4.90 | 4.85 | 0.05 |
| Apr | 4.45 | 4.57 | -0.12 |
| May | 3.65 | 3.54 | 0.11 |
| Jun | 4.20 | 4.17 | 0.03 |
| Jul | 3.46 | 3.51 | -0.05 |
| Aug | 3.84 | 3.80 | 0.04 |
| Sep | 3.97 | 3.99 | -0.02 |
| Oct | 4.94 | 5.00 | -0.06 |
| Nov | 4.23 | 4.25 | -0.02 |
| Dec | 4.87 | 4.91 | -0.04 |
50.06 | 50.14 | -0.08 |