| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.79 | 0.06 |
| Feb | 4.48 | 4.42 | 0.06 |
| Mar | 4.64 | 4.73 | -0.09 |
| Apr | 4.97 | 5.06 | -0.09 |
| May | 5.26 | 5.44 | -0.18 |
| Jun | 4.40 | 4.21 | 0.19 |
| Jul | 4.34 | 4.48 | -0.14 |
| Aug | 3.64 | 3.27 | 0.37 |
| Sep | 3.44 | 3.58 | -0.14 |
| Oct | 3.94 | 3.87 | 0.07 |
| Nov | 3.90 | 3.79 | 0.11 |
| Dec | 4.79 | 4.65 | 0.14 |
51.65 | 51.29 | 0.36 |