| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.59 | -0.01 |
| Feb | 3.29 | 3.37 | -0.08 |
| Mar | 3.50 | 3.55 | -0.05 |
| Apr | 3.23 | 3.41 | -0.18 |
| May | 3.36 | 3.41 | -0.05 |
| Jun | 5.51 | 5.68 | -0.17 |
| Jul | 5.75 | 5.56 | 0.19 |
| Aug | 6.03 | 6.21 | -0.18 |
| Sep | 4.45 | 4.47 | -0.02 |
| Oct | 3.65 | 3.65 | 0.00 |
| Nov | 2.65 | 2.71 | -0.06 |
| Dec | 3.35 | 3.55 | -0.20 |
48.35 | 49.16 | -0.81 |