| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.69 | -0.07 |
| Feb | 3.36 | 3.53 | -0.17 |
| Mar | 3.54 | 3.72 | -0.18 |
| Apr | 3.18 | 3.24 | -0.06 |
| May | 3.62 | 3.76 | -0.14 |
| Jun | 4.78 | 4.94 | -0.16 |
| Jul | 5.30 | 5.11 | 0.19 |
| Aug | 5.20 | 5.07 | 0.13 |
| Sep | 4.21 | 4.34 | -0.13 |
| Oct | 3.48 | 3.53 | -0.05 |
| Nov | 2.83 | 2.93 | -0.10 |
| Dec | 3.66 | 3.76 | -0.10 |
46.78 | 47.62 | -0.84 |