| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.69 | -0.19 |
| Feb | 2.92 | 3.00 | -0.08 |
| Mar | 4.20 | 4.22 | -0.02 |
| Apr | 3.70 | 3.75 | -0.05 |
| May | 3.70 | 3.89 | -0.19 |
| Jun | 4.37 | 4.30 | 0.07 |
| Jul | 4.65 | 4.60 | 0.05 |
| Aug | 4.53 | 4.41 | 0.12 |
| Sep | 4.81 | 5.12 | -0.31 |
| Oct | 3.51 | 3.47 | 0.04 |
| Nov | 3.33 | 3.36 | -0.03 |
| Dec | 3.57 | 3.58 | -0.01 |
46.79 | 47.39 | -0.60 |