| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.33 | 0.04 |
| Feb | 0.54 | 0.51 | 0.03 |
| Mar | 0.99 | 1.01 | -0.02 |
| Apr | 2.21 | 2.20 | 0.01 |
| May | 3.31 | 3.53 | -0.22 |
| Jun | 3.64 | 3.66 | -0.02 |
| Jul | 3.04 | 3.07 | -0.03 |
| Aug | 2.52 | 2.49 | 0.03 |
| Sep | 1.71 | 1.63 | 0.08 |
| Oct | 1.69 | 1.76 | -0.07 |
| Nov | 0.54 | 0.53 | 0.01 |
| Dec | 0.40 | 0.42 | -0.02 |
20.96 | 21.14 | -0.18 |