| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.62 | 4.78 | -0.16 |
| Feb | 4.30 | 4.46 | -0.16 |
| Mar | 5.06 | 5.08 | -0.02 |
| Apr | 4.98 | 5.14 | -0.16 |
| May | 4.42 | 4.49 | -0.07 |
| Jun | 4.40 | 4.53 | -0.13 |
| Jul | 3.46 | 3.50 | -0.04 |
| Aug | 3.24 | 3.28 | -0.04 |
| Sep | 3.54 | 3.65 | -0.11 |
| Oct | 4.59 | 4.71 | -0.12 |
| Nov | 4.23 | 4.38 | -0.15 |
| Dec | 4.96 | 5.18 | -0.22 |
51.80 | 53.18 | -1.38 |