| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.38 | 0.09 |
| Feb | 0.64 | 0.58 | 0.06 |
| Mar | 1.19 | 1.15 | 0.04 |
| Apr | 2.42 | 2.32 | 0.10 |
| May | 3.47 | 3.34 | 0.13 |
| Jun | 3.54 | 3.52 | 0.02 |
| Jul | 2.46 | 2.59 | -0.13 |
| Aug | 2.24 | 2.02 | 0.22 |
| Sep | 1.53 | 1.49 | 0.04 |
| Oct | 1.63 | 1.62 | 0.01 |
| Nov | 0.69 | 0.67 | 0.02 |
| Dec | 0.53 | 0.46 | 0.07 |
20.81 | 20.14 | 0.67 |