| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.73 | -0.23 |
| Feb | 3.22 | 3.18 | 0.04 |
| Mar | 3.61 | 4.10 | -0.49 |
| Apr | 3.21 | 3.74 | -0.53 |
| May | 3.86 | 3.62 | 0.24 |
| Jun | 5.17 | 5.09 | 0.08 |
| Jul | 6.04 | 6.10 | -0.06 |
| Aug | 6.35 | 6.55 | -0.20 |
| Sep | 6.25 | 7.25 | -1.00 |
| Oct | 4.32 | 5.11 | -0.79 |
| Nov | 3.18 | 2.91 | 0.27 |
| Dec | 3.90 | 3.91 | -0.01 |
52.61 | 55.29 | -2.68 |