| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.90 | -0.01 |
| Feb | 0.93 | 0.92 | 0.01 |
| Mar | 1.79 | 1.78 | 0.01 |
| Apr | 3.21 | 3.00 | 0.21 |
| May | 4.34 | 4.21 | 0.13 |
| Jun | 5.18 | 5.08 | 0.10 |
| Jul | 4.49 | 4.53 | -0.04 |
| Aug | 4.58 | 4.41 | 0.17 |
| Sep | 3.59 | 3.47 | 0.12 |
| Oct | 2.54 | 2.49 | 0.05 |
| Nov | 1.59 | 1.53 | 0.06 |
| Dec | 1.19 | 1.20 | -0.01 |
34.32 | 33.52 | 0.80 |