| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.68 | -0.14 |
| Feb | 3.16 | 3.25 | -0.09 |
| Mar | 4.41 | 4.39 | 0.02 |
| Apr | 4.14 | 4.26 | -0.12 |
| May | 3.56 | 3.51 | 0.05 |
| Jun | 4.07 | 3.86 | 0.21 |
| Jul | 3.36 | 3.36 | 0.00 |
| Aug | 3.78 | 4.03 | -0.25 |
| Sep | 3.91 | 3.97 | -0.06 |
| Oct | 4.33 | 4.29 | 0.04 |
| Nov | 3.56 | 3.50 | 0.06 |
| Dec | 4.58 | 4.65 | -0.07 |
46.40 | 46.75 | -0.35 |