| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.77 | -0.08 |
| Feb | 0.81 | 0.87 | -0.06 |
| Mar | 1.42 | 1.56 | -0.14 |
| Apr | 2.71 | 2.85 | -0.14 |
| May | 4.05 | 4.18 | -0.13 |
| Jun | 4.42 | 4.38 | 0.04 |
| Jul | 4.15 | 4.35 | -0.20 |
| Aug | 3.95 | 4.05 | -0.10 |
| Sep | 3.22 | 3.32 | -0.10 |
| Oct | 2.78 | 2.79 | -0.01 |
| Nov | 1.50 | 1.61 | -0.11 |
| Dec | 1.01 | 1.13 | -0.12 |
30.71 | 31.86 | -1.15 |