| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.69 | 6.54 | 0.15 |
| Feb | 5.17 | 5.07 | 0.10 |
| Mar | 5.61 | 5.44 | 0.17 |
| Apr | 4.51 | 4.37 | 0.14 |
| May | 3.15 | 3.02 | 0.13 |
| Jun | 2.06 | 2.12 | -0.06 |
| Jul | 0.44 | 0.45 | -0.01 |
| Aug | 0.55 | 0.53 | 0.02 |
| Sep | 1.79 | 1.83 | -0.04 |
| Oct | 4.18 | 4.25 | -0.07 |
| Nov | 6.89 | 6.70 | 0.19 |
| Dec | 7.82 | 7.66 | 0.16 |
48.86 | 47.98 | 0.88 |