| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.61 | 0.02 |
| Feb | 2.85 | 2.72 | 0.13 |
| Mar | 4.19 | 4.09 | 0.10 |
| Apr | 3.49 | 3.64 | -0.15 |
| May | 3.53 | 3.52 | 0.01 |
| Jun | 4.66 | 4.53 | 0.13 |
| Jul | 5.05 | 5.05 | 0.00 |
| Aug | 4.75 | 4.69 | 0.06 |
| Sep | 5.13 | 5.23 | -0.10 |
| Oct | 3.59 | 3.53 | 0.06 |
| Nov | 3.42 | 3.31 | 0.11 |
| Dec | 3.49 | 3.48 | 0.01 |
47.78 | 47.40 | 0.38 |