| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.95 | -0.16 |
| Feb | 0.81 | 0.93 | -0.12 |
| Mar | 1.63 | 1.71 | -0.08 |
| Apr | 2.87 | 3.13 | -0.26 |
| May | 4.12 | 4.29 | -0.17 |
| Jun | 4.69 | 4.94 | -0.25 |
| Jul | 4.18 | 4.33 | -0.15 |
| Aug | 4.62 | 4.50 | 0.12 |
| Sep | 3.33 | 3.41 | -0.08 |
| Oct | 2.80 | 3.01 | -0.21 |
| Nov | 1.62 | 1.70 | -0.08 |
| Dec | 1.13 | 1.30 | -0.17 |
32.59 | 34.20 | -1.61 |