| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 4.22 | -0.04 |
| Feb | 4.26 | 4.30 | -0.04 |
| Mar | 4.67 | 4.63 | 0.04 |
| Apr | 3.43 | 3.53 | -0.10 |
| May | 3.09 | 3.09 | 0.00 |
| Jun | 4.09 | 4.34 | -0.25 |
| Jul | 3.91 | 4.14 | -0.23 |
| Aug | 4.56 | 4.40 | 0.16 |
| Sep | 3.75 | 3.91 | -0.16 |
| Oct | 2.84 | 2.89 | -0.05 |
| Nov | 3.33 | 3.40 | -0.07 |
| Dec | 4.44 | 4.47 | -0.03 |
46.55 | 47.32 | -0.77 |