| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 4.06 | -0.09 |
| Feb | 3.72 | 3.73 | -0.01 |
| Mar | 4.36 | 4.35 | 0.01 |
| Apr | 3.08 | 3.07 | 0.01 |
| May | 3.19 | 3.25 | -0.06 |
| Jun | 4.55 | 4.53 | 0.02 |
| Jul | 4.30 | 4.16 | 0.14 |
| Aug | 4.39 | 4.76 | -0.37 |
| Sep | 3.69 | 3.87 | -0.18 |
| Oct | 2.92 | 2.88 | 0.04 |
| Nov | 3.30 | 3.31 | -0.01 |
| Dec | 4.23 | 4.18 | 0.05 |
45.70 | 46.15 | -0.45 |