| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.49 | -0.02 |
| Feb | 3.19 | 3.20 | -0.01 |
| Mar | 3.43 | 3.49 | -0.06 |
| Apr | 3.18 | 3.32 | -0.14 |
| May | 3.33 | 3.25 | 0.08 |
| Jun | 5.55 | 5.72 | -0.17 |
| Jul | 5.75 | 5.59 | 0.16 |
| Aug | 6.13 | 6.67 | -0.54 |
| Sep | 4.56 | 4.75 | -0.19 |
| Oct | 3.79 | 3.90 | -0.11 |
| Nov | 2.47 | 2.61 | -0.14 |
| Dec | 3.15 | 3.43 | -0.28 |
48.00 | 49.42 | -1.42 |