| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.36 | 4.30 | 0.06 |
| Feb | 4.67 | 4.65 | 0.02 |
| Mar | 5.14 | 4.96 | 0.18 |
| Apr | 4.86 | 4.78 | 0.08 |
| May | 4.89 | 4.94 | -0.05 |
| Jun | 4.44 | 4.41 | 0.03 |
| Jul | 4.53 | 4.48 | 0.05 |
| Aug | 3.74 | 3.50 | 0.24 |
| Sep | 3.92 | 3.81 | 0.11 |
| Oct | 3.54 | 3.40 | 0.14 |
| Nov | 3.70 | 3.83 | -0.13 |
| Dec | 4.94 | 5.12 | -0.18 |
52.73 | 52.18 | 0.55 |