| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.73 | 4.70 | 0.03 |
| Feb | 4.78 | 4.75 | 0.03 |
| Mar | 4.83 | 4.75 | 0.08 |
| Apr | 3.99 | 4.04 | -0.05 |
| May | 3.91 | 3.96 | -0.05 |
| Jun | 4.36 | 4.30 | 0.06 |
| Jul | 4.99 | 5.21 | -0.22 |
| Aug | 4.18 | 4.25 | -0.07 |
| Sep | 3.90 | 3.94 | -0.04 |
| Oct | 3.50 | 3.51 | -0.01 |
| Nov | 4.07 | 4.17 | -0.10 |
| Dec | 4.64 | 4.66 | -0.02 |
51.88 | 52.24 | -0.36 |