| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 3.95 | 0.01 |
| Feb | 4.22 | 4.33 | -0.11 |
| Mar | 4.63 | 4.61 | 0.02 |
| Apr | 4.87 | 4.82 | 0.05 |
| May | 5.42 | 5.46 | -0.04 |
| Jun | 4.20 | 4.28 | -0.08 |
| Jul | 4.38 | 4.44 | -0.06 |
| Aug | 3.65 | 3.55 | 0.10 |
| Sep | 3.70 | 3.65 | 0.05 |
| Oct | 3.63 | 3.67 | -0.04 |
| Nov | 3.62 | 3.59 | 0.03 |
| Dec | 4.74 | 4.75 | -0.01 |
51.02 | 51.10 | -0.08 |