| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.66 | -0.08 |
| Feb | 3.37 | 3.45 | -0.08 |
| Mar | 3.56 | 3.69 | -0.13 |
| Apr | 3.14 | 3.19 | -0.05 |
| May | 3.64 | 3.72 | -0.08 |
| Jun | 4.64 | 4.76 | -0.12 |
| Jul | 5.16 | 5.07 | 0.09 |
| Aug | 5.20 | 5.13 | 0.07 |
| Sep | 4.27 | 4.43 | -0.16 |
| Oct | 3.41 | 3.50 | -0.09 |
| Nov | 2.83 | 2.95 | -0.12 |
| Dec | 3.65 | 3.74 | -0.09 |
46.45 | 47.29 | -0.84 |