| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.83 | 4.69 | 0.14 |
| Feb | 4.89 | 4.99 | -0.10 |
| Mar | 5.10 | 5.18 | -0.08 |
| Apr | 4.44 | 4.27 | 0.17 |
| May | 3.76 | 4.01 | -0.25 |
| Jun | 4.00 | 4.16 | -0.16 |
| Jul | 4.53 | 4.64 | -0.11 |
| Aug | 3.75 | 3.96 | -0.21 |
| Sep | 3.51 | 3.91 | -0.40 |
| Oct | 3.30 | 3.47 | -0.17 |
| Nov | 4.21 | 4.20 | 0.01 |
| Dec | 4.82 | 4.93 | -0.11 |
51.14 | 52.41 | -1.27 |