| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.79 | 4.67 | 0.12 |
| Feb | 4.74 | 4.75 | -0.01 |
| Mar | 4.89 | 4.79 | 0.10 |
| Apr | 3.99 | 4.05 | -0.06 |
| May | 3.71 | 3.79 | -0.08 |
| Jun | 4.48 | 4.42 | 0.06 |
| Jul | 4.86 | 4.84 | 0.02 |
| Aug | 4.35 | 4.54 | -0.19 |
| Sep | 4.01 | 4.09 | -0.08 |
| Oct | 3.51 | 3.50 | 0.01 |
| Nov | 4.07 | 4.20 | -0.13 |
| Dec | 4.69 | 4.70 | -0.01 |
52.09 | 52.34 | -0.25 |