| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.77 | -0.06 |
| Feb | 2.97 | 3.17 | -0.20 |
| Mar | 4.46 | 4.33 | 0.13 |
| Apr | 3.69 | 3.72 | -0.03 |
| May | 3.82 | 3.62 | 0.20 |
| Jun | 4.00 | 4.16 | -0.16 |
| Jul | 4.44 | 4.19 | 0.25 |
| Aug | 4.59 | 4.42 | 0.17 |
| Sep | 3.92 | 3.78 | 0.14 |
| Oct | 4.09 | 4.25 | -0.16 |
| Nov | 3.30 | 3.53 | -0.23 |
| Dec | 4.46 | 4.62 | -0.16 |
47.45 | 47.56 | -0.11 |