| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 4.02 | 0.16 |
| Feb | 3.43 | 3.29 | 0.14 |
| Mar | 4.38 | 4.32 | 0.06 |
| Apr | 4.74 | 4.68 | 0.06 |
| May | 4.77 | 4.63 | 0.14 |
| Jun | 4.77 | 5.00 | -0.23 |
| Jul | 5.09 | 5.16 | -0.07 |
| Aug | 5.30 | 5.49 | -0.19 |
| Sep | 4.92 | 4.82 | 0.10 |
| Oct | 4.00 | 3.91 | 0.09 |
| Nov | 3.73 | 3.70 | 0.03 |
| Dec | 4.35 | 4.33 | 0.02 |
53.66 | 53.35 | 0.31 |