| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.88 | -0.14 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.57 | 1.61 | -0.04 |
| Apr | 2.93 | 2.98 | -0.05 |
| May | 4.20 | 4.23 | -0.03 |
| Jun | 4.71 | 4.54 | 0.17 |
| Jul | 4.19 | 4.20 | -0.01 |
| Aug | 4.41 | 4.49 | -0.08 |
| Sep | 3.28 | 3.29 | -0.01 |
| Oct | 2.63 | 2.59 | 0.04 |
| Nov | 1.54 | 1.58 | -0.04 |
| Dec | 1.04 | 1.23 | -0.19 |
32.02 | 32.51 | -0.49 |