| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 4.06 | -0.31 |
| Feb | 3.35 | 3.60 | -0.25 |
| Mar | 4.82 | 5.29 | -0.47 |
| Apr | 4.27 | 4.66 | -0.39 |
| May | 3.43 | 3.53 | -0.10 |
| Jun | 3.62 | 3.79 | -0.17 |
| Jul | 3.11 | 3.18 | -0.07 |
| Aug | 3.67 | 3.82 | -0.15 |
| Sep | 3.85 | 3.89 | -0.04 |
| Oct | 4.50 | 4.69 | -0.19 |
| Nov | 3.95 | 4.17 | -0.22 |
| Dec | 4.61 | 5.01 | -0.40 |
46.93 | 49.69 | -2.76 |