| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.58 | 0.03 |
| Feb | 0.84 | 0.87 | -0.03 |
| Mar | 1.55 | 1.49 | 0.06 |
| Apr | 3.17 | 3.32 | -0.15 |
| May | 3.95 | 3.94 | 0.01 |
| Jun | 4.14 | 4.10 | 0.04 |
| Jul | 3.25 | 3.09 | 0.16 |
| Aug | 3.18 | 3.11 | 0.07 |
| Sep | 2.92 | 2.91 | 0.01 |
| Oct | 2.50 | 2.56 | -0.06 |
| Nov | 1.23 | 1.13 | 0.10 |
| Dec | 0.85 | 0.84 | 0.01 |
28.19 | 27.94 | 0.25 |