| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.75 | -0.15 |
| Feb | 3.27 | 3.20 | 0.07 |
| Mar | 3.67 | 3.73 | -0.06 |
| Apr | 3.20 | 3.29 | -0.09 |
| May | 3.50 | 3.45 | 0.05 |
| Jun | 4.16 | 4.13 | 0.03 |
| Jul | 4.65 | 4.55 | 0.10 |
| Aug | 4.75 | 4.81 | -0.06 |
| Sep | 4.24 | 4.36 | -0.12 |
| Oct | 3.47 | 3.38 | 0.09 |
| Nov | 3.18 | 3.16 | 0.02 |
| Dec | 3.88 | 3.79 | 0.09 |
45.57 | 45.60 | -0.03 |