| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.02 | 0.03 |
| Feb | 3.51 | 3.46 | 0.05 |
| Mar | 4.79 | 4.89 | -0.10 |
| Apr | 4.50 | 4.55 | -0.05 |
| May | 3.56 | 3.50 | 0.06 |
| Jun | 4.05 | 4.12 | -0.07 |
| Jul | 3.43 | 3.47 | -0.04 |
| Aug | 4.03 | 3.98 | 0.05 |
| Sep | 4.19 | 4.15 | 0.04 |
| Oct | 4.74 | 4.79 | -0.05 |
| Nov | 4.25 | 4.16 | 0.09 |
| Dec | 4.81 | 4.93 | -0.12 |
49.91 | 50.02 | -0.11 |