| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.82 | -0.12 |
| Feb | 0.79 | 0.90 | -0.11 |
| Mar | 1.46 | 1.56 | -0.10 |
| Apr | 2.77 | 2.93 | -0.16 |
| May | 4.15 | 4.30 | -0.15 |
| Jun | 4.43 | 4.46 | -0.03 |
| Jul | 4.19 | 4.48 | -0.29 |
| Aug | 3.99 | 4.19 | -0.20 |
| Sep | 3.14 | 3.35 | -0.21 |
| Oct | 2.83 | 2.82 | 0.01 |
| Nov | 1.53 | 1.67 | -0.14 |
| Dec | 1.03 | 1.18 | -0.15 |
31.01 | 32.66 | -1.65 |