| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.71 | 0.00 |
| Feb | 3.27 | 3.21 | 0.06 |
| Mar | 4.07 | 3.95 | 0.12 |
| Apr | 3.68 | 3.70 | -0.02 |
| May | 4.00 | 4.13 | -0.13 |
| Jun | 4.60 | 4.61 | -0.01 |
| Jul | 5.65 | 5.58 | 0.07 |
| Aug | 5.71 | 5.69 | 0.02 |
| Sep | 6.70 | 6.61 | 0.09 |
| Oct | 3.53 | 3.63 | -0.10 |
| Nov | 3.28 | 3.32 | -0.04 |
| Dec | 3.46 | 3.41 | 0.05 |
51.66 | 51.55 | 0.11 |