| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.37 | 4.26 | 0.11 |
| Feb | 4.69 | 4.66 | 0.03 |
| Mar | 5.16 | 5.00 | 0.16 |
| Apr | 4.93 | 4.79 | 0.14 |
| May | 4.97 | 5.11 | -0.14 |
| Jun | 4.37 | 4.35 | 0.02 |
| Jul | 4.51 | 4.47 | 0.04 |
| Aug | 3.73 | 3.52 | 0.21 |
| Sep | 3.92 | 3.89 | 0.03 |
| Oct | 3.53 | 3.39 | 0.14 |
| Nov | 3.74 | 3.85 | -0.11 |
| Dec | 4.99 | 5.04 | -0.05 |
52.91 | 52.33 | 0.58 |