| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 4.09 | -0.14 |
| Feb | 4.01 | 4.08 | -0.07 |
| Mar | 4.89 | 4.95 | -0.06 |
| Apr | 4.85 | 4.93 | -0.08 |
| May | 5.17 | 5.32 | -0.15 |
| Jun | 4.71 | 5.17 | -0.46 |
| Jul | 5.02 | 5.20 | -0.18 |
| Aug | 3.67 | 3.70 | -0.03 |
| Sep | 3.98 | 3.99 | -0.01 |
| Oct | 3.47 | 3.51 | -0.04 |
| Nov | 3.40 | 3.56 | -0.16 |
| Dec | 4.60 | 4.78 | -0.18 |
51.72 | 53.28 | -1.56 |