| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.79 | -0.13 |
| Feb | 0.77 | 0.85 | -0.08 |
| Mar | 1.47 | 1.53 | -0.06 |
| Apr | 2.59 | 2.77 | -0.18 |
| May | 3.73 | 4.07 | -0.34 |
| Jun | 4.65 | 4.81 | -0.16 |
| Jul | 3.74 | 3.70 | 0.04 |
| Aug | 3.82 | 4.23 | -0.41 |
| Sep | 3.06 | 3.18 | -0.12 |
| Oct | 2.29 | 2.29 | 0.00 |
| Nov | 1.38 | 1.43 | -0.05 |
| Dec | 0.95 | 1.10 | -0.15 |
29.11 | 30.75 | -1.64 |