| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.61 | 4.12 | 0.49 |
| Feb | 4.00 | 3.70 | 0.30 |
| Mar | 4.49 | 4.50 | -0.01 |
| Apr | 4.15 | 4.34 | -0.19 |
| May | 4.51 | 4.33 | 0.18 |
| Jun | 4.78 | 5.08 | -0.30 |
| Jul | 5.22 | 5.71 | -0.49 |
| Aug | 4.26 | 4.62 | -0.36 |
| Sep | 3.83 | 3.89 | -0.06 |
| Oct | 3.68 | 2.88 | 0.80 |
| Nov | 3.93 | 3.51 | 0.42 |
| Dec | 5.01 | 4.55 | 0.46 |
52.47 | 51.23 | 1.24 |