| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.35 | -0.13 |
| Feb | 2.60 | 2.69 | -0.09 |
| Mar | 3.76 | 3.86 | -0.10 |
| Apr | 3.72 | 3.81 | -0.09 |
| May | 4.24 | 4.29 | -0.05 |
| Jun | 4.16 | 4.15 | 0.01 |
| Jul | 4.13 | 4.15 | -0.02 |
| Aug | 3.49 | 3.66 | -0.17 |
| Sep | 4.74 | 4.92 | -0.18 |
| Oct | 3.75 | 3.84 | -0.09 |
| Nov | 3.23 | 3.25 | -0.02 |
| Dec | 3.56 | 3.66 | -0.10 |
44.60 | 45.63 | -1.03 |