| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.35 | 0.04 |
| Feb | 2.76 | 2.70 | 0.06 |
| Mar | 3.71 | 3.73 | -0.02 |
| Apr | 4.87 | 4.85 | 0.02 |
| May | 5.06 | 5.09 | -0.03 |
| Jun | 5.13 | 5.20 | -0.07 |
| Jul | 4.41 | 4.12 | 0.29 |
| Aug | 3.55 | 3.46 | 0.09 |
| Sep | 3.24 | 3.22 | 0.02 |
| Oct | 3.39 | 3.29 | 0.10 |
| Nov | 3.53 | 3.52 | 0.01 |
| Dec | 3.51 | 3.46 | 0.05 |
46.55 | 45.99 | 0.56 |