| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.47 | 0.02 |
| Feb | 2.90 | 2.76 | 0.14 |
| Mar | 4.08 | 4.17 | -0.09 |
| Apr | 3.43 | 3.44 | -0.01 |
| May | 3.76 | 3.88 | -0.12 |
| Jun | 4.49 | 4.32 | 0.17 |
| Jul | 5.00 | 5.12 | -0.12 |
| Aug | 4.81 | 4.85 | -0.04 |
| Sep | 4.51 | 5.12 | -0.61 |
| Oct | 4.06 | 4.23 | -0.17 |
| Nov | 3.01 | 2.95 | 0.06 |
| Dec | 3.64 | 3.65 | -0.01 |
47.18 | 47.96 | -0.78 |