| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.58 | 4.58 | 0.00 |
| Feb | 4.66 | 4.65 | 0.01 |
| Mar | 4.96 | 4.67 | 0.29 |
| Apr | 3.77 | 3.91 | -0.14 |
| May | 3.73 | 3.71 | 0.02 |
| Jun | 4.42 | 4.60 | -0.18 |
| Jul | 4.29 | 4.54 | -0.25 |
| Aug | 4.66 | 4.52 | 0.14 |
| Sep | 4.04 | 3.93 | 0.11 |
| Oct | 3.46 | 3.48 | -0.02 |
| Nov | 4.02 | 4.01 | 0.01 |
| Dec | 4.53 | 4.60 | -0.07 |
51.12 | 51.20 | -0.08 |