| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.81 | -0.12 |
| Feb | 0.81 | 0.90 | -0.09 |
| Mar | 1.44 | 1.56 | -0.12 |
| Apr | 2.74 | 2.91 | -0.17 |
| May | 4.11 | 4.29 | -0.18 |
| Jun | 4.47 | 4.45 | 0.02 |
| Jul | 4.19 | 4.49 | -0.30 |
| Aug | 4.00 | 4.16 | -0.16 |
| Sep | 3.22 | 3.37 | -0.15 |
| Oct | 2.79 | 2.82 | -0.03 |
| Nov | 1.53 | 1.66 | -0.13 |
| Dec | 1.03 | 1.17 | -0.14 |
31.02 | 32.59 | -1.57 |