| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.44 | 0.00 |
| Feb | 0.58 | 0.60 | -0.02 |
| Mar | 1.07 | 1.12 | -0.05 |
| Apr | 2.37 | 2.36 | 0.01 |
| May | 3.34 | 3.39 | -0.05 |
| Jun | 3.48 | 3.64 | -0.16 |
| Jul | 2.56 | 2.49 | 0.07 |
| Aug | 2.26 | 2.07 | 0.19 |
| Sep | 1.71 | 1.79 | -0.08 |
| Oct | 1.58 | 1.61 | -0.03 |
| Nov | 0.62 | 0.68 | -0.06 |
| Dec | 0.47 | 0.50 | -0.03 |
20.48 | 20.69 | -0.21 |