| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 3.22 | -0.01 |
| Feb | 3.19 | 3.20 | -0.01 |
| Mar | 4.09 | 4.01 | 0.08 |
| Apr | 3.69 | 3.81 | -0.12 |
| May | 4.80 | 5.00 | -0.20 |
| Jun | 4.43 | 4.48 | -0.05 |
| Jul | 5.13 | 5.62 | -0.49 |
| Aug | 3.78 | 3.53 | 0.25 |
| Sep | 3.42 | 3.40 | 0.02 |
| Oct | 3.00 | 3.04 | -0.04 |
| Nov | 3.02 | 2.95 | 0.07 |
| Dec | 3.65 | 3.79 | -0.14 |
45.41 | 46.05 | -0.64 |