| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.12 | 4.31 | -0.19 |
| Feb | 4.05 | 4.18 | -0.13 |
| Mar | 4.99 | 5.00 | -0.01 |
| Apr | 4.79 | 4.92 | -0.13 |
| May | 5.27 | 5.62 | -0.35 |
| Jun | 4.64 | 4.80 | -0.16 |
| Jul | 5.06 | 5.02 | 0.04 |
| Aug | 3.72 | 3.64 | 0.08 |
| Sep | 3.91 | 3.95 | -0.04 |
| Oct | 3.42 | 3.59 | -0.17 |
| Nov | 3.42 | 3.66 | -0.24 |
| Dec | 4.62 | 5.00 | -0.38 |
52.01 | 53.69 | -1.68 |