| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.36 | 3.67 | -0.31 |
| Feb | 2.72 | 3.10 | -0.38 |
| Mar | 3.47 | 3.78 | -0.31 |
| Apr | 3.45 | 3.76 | -0.31 |
| May | 3.83 | 3.99 | -0.16 |
| Jun | 4.48 | 4.70 | -0.22 |
| Jul | 4.41 | 4.50 | -0.09 |
| Aug | 4.32 | 4.44 | -0.12 |
| Sep | 4.69 | 4.80 | -0.11 |
| Oct | 4.54 | 4.93 | -0.39 |
| Nov | 3.43 | 3.71 | -0.28 |
| Dec | 3.80 | 4.44 | -0.64 |
46.50 | 49.82 | -3.32 |