| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.81 | 2.94 | -0.13 |
| Feb | 2.33 | 2.48 | -0.15 |
| Mar | 3.19 | 3.32 | -0.13 |
| Apr | 4.24 | 4.46 | -0.22 |
| May | 4.53 | 4.59 | -0.06 |
| Jun | 4.87 | 5.00 | -0.13 |
| Jul | 4.18 | 4.23 | -0.05 |
| Aug | 3.25 | 3.09 | 0.16 |
| Sep | 3.27 | 3.28 | -0.01 |
| Oct | 3.30 | 3.21 | 0.09 |
| Nov | 3.37 | 3.43 | -0.06 |
| Dec | 2.77 | 2.89 | -0.12 |
42.11 | 42.92 | -0.81 |