| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.94 | -0.12 |
| Feb | 0.81 | 0.94 | -0.13 |
| Mar | 1.61 | 1.74 | -0.13 |
| Apr | 2.88 | 2.99 | -0.11 |
| May | 4.05 | 4.29 | -0.24 |
| Jun | 4.77 | 5.02 | -0.25 |
| Jul | 4.14 | 4.29 | -0.15 |
| Aug | 4.50 | 4.58 | -0.08 |
| Sep | 3.28 | 3.36 | -0.08 |
| Oct | 2.60 | 2.67 | -0.07 |
| Nov | 1.52 | 1.66 | -0.14 |
| Dec | 1.13 | 1.28 | -0.15 |
32.11 | 33.76 | -1.65 |