| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.50 | 0.20 |
| Feb | 3.42 | 3.35 | 0.07 |
| Mar | 4.76 | 4.80 | -0.04 |
| Apr | 5.33 | 5.17 | 0.16 |
| May | 5.33 | 5.21 | 0.12 |
| Jun | 3.77 | 4.13 | -0.36 |
| Jul | 3.94 | 3.92 | 0.02 |
| Aug | 4.09 | 3.52 | 0.57 |
| Sep | 3.87 | 4.10 | -0.23 |
| Oct | 4.12 | 4.35 | -0.23 |
| Nov | 4.95 | 4.69 | 0.26 |
| Dec | 4.22 | 4.49 | -0.27 |
51.50 | 51.23 | 0.27 |