| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.68 | -0.07 |
| Feb | 0.71 | 0.76 | -0.05 |
| Mar | 1.44 | 1.44 | 0.00 |
| Apr | 2.64 | 2.84 | -0.20 |
| May | 4.53 | 4.66 | -0.13 |
| Jun | 4.15 | 4.03 | 0.12 |
| Jul | 3.28 | 3.30 | -0.02 |
| Aug | 3.37 | 3.29 | 0.08 |
| Sep | 2.33 | 2.41 | -0.08 |
| Oct | 2.20 | 2.16 | 0.04 |
| Nov | 1.22 | 1.28 | -0.06 |
| Dec | 0.90 | 0.87 | 0.03 |
27.38 | 27.72 | -0.34 |