| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.54 | 1.58 | -0.04 |
| Feb | 1.23 | 1.21 | 0.02 |
| Mar | 1.90 | 1.72 | 0.18 |
| Apr | 3.22 | 3.30 | -0.08 |
| May | 3.56 | 3.46 | 0.10 |
| Jun | 4.26 | 4.25 | 0.01 |
| Jul | 3.51 | 3.65 | -0.14 |
| Aug | 3.40 | 3.53 | -0.13 |
| Sep | 2.69 | 2.43 | 0.26 |
| Oct | 2.94 | 2.87 | 0.07 |
| Nov | 2.13 | 2.00 | 0.13 |
| Dec | 1.71 | 1.81 | -0.10 |
32.09 | 31.81 | 0.28 |