| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.67 | 2.48 | 0.19 |
| Feb | 2.29 | 2.31 | -0.02 |
| Mar | 2.68 | 2.52 | 0.16 |
| Apr | 3.20 | 3.40 | -0.20 |
| May | 3.82 | 3.75 | 0.07 |
| Jun | 4.13 | 4.11 | 0.02 |
| Jul | 4.69 | 4.58 | 0.11 |
| Aug | 3.98 | 4.00 | -0.02 |
| Sep | 3.52 | 3.36 | 0.16 |
| Oct | 4.19 | 4.23 | -0.04 |
| Nov | 3.12 | 3.05 | 0.07 |
| Dec | 3.26 | 3.40 | -0.14 |
41.55 | 41.19 | 0.36 |