| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.57 | -0.13 |
| Feb | 3.29 | 3.44 | -0.15 |
| Mar | 4.35 | 4.60 | -0.25 |
| Apr | 4.10 | 4.20 | -0.10 |
| May | 3.64 | 3.65 | -0.01 |
| Jun | 4.13 | 4.16 | -0.03 |
| Jul | 3.59 | 3.63 | -0.04 |
| Aug | 3.48 | 3.41 | 0.07 |
| Sep | 3.80 | 3.75 | 0.05 |
| Oct | 4.66 | 4.79 | -0.13 |
| Nov | 3.83 | 3.90 | -0.07 |
| Dec | 4.49 | 4.69 | -0.20 |
46.80 | 47.79 | -0.99 |