| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.31 | 0.08 |
| Feb | 4.70 | 4.68 | 0.02 |
| Mar | 5.17 | 5.00 | 0.17 |
| Apr | 4.92 | 4.79 | 0.13 |
| May | 4.93 | 5.03 | -0.10 |
| Jun | 4.40 | 4.38 | 0.02 |
| Jul | 4.50 | 4.51 | -0.01 |
| Aug | 3.73 | 3.54 | 0.19 |
| Sep | 3.89 | 3.88 | 0.01 |
| Oct | 3.55 | 3.39 | 0.16 |
| Nov | 3.73 | 3.85 | -0.12 |
| Dec | 4.99 | 5.14 | -0.15 |
52.90 | 52.50 | 0.40 |