| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.23 | -0.02 |
| Feb | 4.64 | 4.56 | 0.08 |
| Mar | 4.85 | 4.79 | 0.06 |
| Apr | 5.00 | 4.89 | 0.11 |
| May | 5.03 | 5.13 | -0.10 |
| Jun | 4.38 | 4.34 | 0.04 |
| Jul | 4.69 | 4.68 | 0.01 |
| Aug | 3.93 | 3.90 | 0.03 |
| Sep | 3.80 | 3.80 | 0.00 |
| Oct | 3.57 | 3.48 | 0.09 |
| Nov | 3.76 | 3.71 | 0.05 |
| Dec | 4.84 | 4.85 | -0.01 |
52.70 | 52.36 | 0.34 |