| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.56 | 5.63 | -0.07 |
| Feb | 4.49 | 4.47 | 0.02 |
| Mar | 4.47 | 4.60 | -0.13 |
| Apr | 4.88 | 5.01 | -0.13 |
| May | 4.64 | 4.89 | -0.25 |
| Jun | 5.22 | 5.54 | -0.32 |
| Jul | 4.61 | 4.94 | -0.33 |
| Aug | 4.51 | 5.03 | -0.52 |
| Sep | 4.48 | 4.89 | -0.41 |
| Oct | 4.96 | 5.29 | -0.33 |
| Nov | 5.04 | 5.19 | -0.15 |
| Dec | 5.42 | 5.68 | -0.26 |
58.28 | 61.16 | -2.88 |