| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.52 | 1.55 | -0.03 |
| Feb | 1.59 | 1.61 | -0.02 |
| Mar | 2.21 | 2.13 | 0.08 |
| Apr | 3.63 | 3.64 | -0.01 |
| May | 4.19 | 4.17 | 0.02 |
| Jun | 5.50 | 5.32 | 0.18 |
| Jul | 4.09 | 3.76 | 0.33 |
| Aug | 4.20 | 4.05 | 0.15 |
| Sep | 3.69 | 3.76 | -0.07 |
| Oct | 2.87 | 2.90 | -0.03 |
| Nov | 2.36 | 2.32 | 0.04 |
| Dec | 1.97 | 1.91 | 0.06 |
37.82 | 37.12 | 0.70 |