| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.65 | 0.06 |
| Feb | 3.27 | 3.17 | 0.10 |
| Mar | 4.04 | 3.89 | 0.15 |
| Apr | 3.65 | 3.66 | -0.01 |
| May | 4.03 | 4.15 | -0.12 |
| Jun | 4.75 | 4.70 | 0.05 |
| Jul | 5.77 | 5.50 | 0.27 |
| Aug | 5.98 | 5.67 | 0.31 |
| Sep | 6.67 | 6.53 | 0.14 |
| Oct | 3.51 | 3.63 | -0.12 |
| Nov | 3.31 | 3.26 | 0.05 |
| Dec | 3.47 | 3.36 | 0.11 |
52.16 | 51.17 | 0.99 |