| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 3.82 | -0.06 |
| Feb | 3.44 | 3.43 | 0.01 |
| Mar | 4.59 | 4.66 | -0.07 |
| Apr | 4.17 | 4.30 | -0.13 |
| May | 3.65 | 3.61 | 0.04 |
| Jun | 4.17 | 4.06 | 0.11 |
| Jul | 3.55 | 3.54 | 0.01 |
| Aug | 3.58 | 3.65 | -0.07 |
| Sep | 3.88 | 3.80 | 0.08 |
| Oct | 4.76 | 4.79 | -0.03 |
| Nov | 3.94 | 3.96 | -0.02 |
| Dec | 4.71 | 4.84 | -0.13 |
48.20 | 48.46 | -0.26 |