| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.56 | -0.13 |
| Feb | 2.87 | 2.86 | 0.01 |
| Mar | 4.03 | 3.80 | 0.23 |
| Apr | 3.49 | 3.55 | -0.06 |
| May | 3.72 | 3.78 | -0.06 |
| Jun | 4.27 | 4.25 | 0.02 |
| Jul | 5.28 | 4.99 | 0.29 |
| Aug | 5.03 | 5.56 | -0.53 |
| Sep | 5.05 | 4.90 | 0.15 |
| Oct | 3.90 | 4.45 | -0.55 |
| Nov | 3.10 | 3.20 | -0.10 |
| Dec | 3.50 | 3.48 | 0.02 |
47.67 | 48.38 | -0.71 |