| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.47 | -0.08 |
| Feb | 3.40 | 3.60 | -0.20 |
| Mar | 4.08 | 4.22 | -0.14 |
| Apr | 4.38 | 4.55 | -0.17 |
| May | 3.74 | 3.67 | 0.07 |
| Jun | 4.39 | 4.35 | 0.04 |
| Jul | 3.53 | 3.55 | -0.02 |
| Aug | 3.47 | 3.51 | -0.04 |
| Sep | 3.92 | 3.78 | 0.14 |
| Oct | 5.08 | 5.38 | -0.30 |
| Nov | 4.39 | 4.21 | 0.18 |
| Dec | 4.48 | 4.71 | -0.23 |
48.25 | 49.00 | -0.75 |