| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.37 | -0.02 |
| Feb | 0.53 | 0.55 | -0.02 |
| Mar | 1.02 | 1.03 | -0.01 |
| Apr | 1.71 | 1.74 | -0.03 |
| May | 2.77 | 2.87 | -0.10 |
| Jun | 2.65 | 2.74 | -0.09 |
| Jul | 3.12 | 3.36 | -0.24 |
| Aug | 2.64 | 2.88 | -0.24 |
| Sep | 1.51 | 1.64 | -0.13 |
| Oct | 1.47 | 1.53 | -0.06 |
| Nov | 0.60 | 0.64 | -0.04 |
| Dec | 0.44 | 0.58 | -0.14 |
18.81 | 19.93 | -1.12 |