| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.65 | 4.81 | -0.16 |
| Feb | 4.80 | 4.98 | -0.18 |
| Mar | 4.89 | 5.02 | -0.13 |
| Apr | 4.12 | 4.26 | -0.14 |
| May | 3.69 | 3.88 | -0.19 |
| Jun | 4.05 | 4.11 | -0.06 |
| Jul | 4.60 | 4.75 | -0.15 |
| Aug | 3.79 | 4.05 | -0.26 |
| Sep | 3.77 | 3.88 | -0.11 |
| Oct | 3.28 | 3.36 | -0.08 |
| Nov | 4.12 | 4.22 | -0.10 |
| Dec | 4.56 | 4.76 | -0.20 |
50.32 | 52.08 | -1.76 |