| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.81 | -0.10 |
| Feb | 0.79 | 0.88 | -0.09 |
| Mar | 1.49 | 1.56 | -0.07 |
| Apr | 2.87 | 2.92 | -0.05 |
| May | 4.12 | 4.27 | -0.15 |
| Jun | 4.44 | 4.47 | -0.03 |
| Jul | 4.10 | 4.23 | -0.13 |
| Aug | 4.05 | 4.12 | -0.07 |
| Sep | 3.20 | 3.28 | -0.08 |
| Oct | 2.78 | 2.70 | 0.08 |
| Nov | 1.54 | 1.59 | -0.05 |
| Dec | 1.02 | 1.18 | -0.16 |
31.11 | 32.01 | -0.90 |