| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.55 | -0.11 |
| Feb | 3.14 | 3.27 | -0.13 |
| Mar | 4.54 | 4.58 | -0.04 |
| Apr | 5.21 | 5.42 | -0.21 |
| May | 5.59 | 5.35 | 0.24 |
| Jun | 4.79 | 4.68 | 0.11 |
| Jul | 4.30 | 4.48 | -0.18 |
| Aug | 3.06 | 3.13 | -0.07 |
| Sep | 3.50 | 3.79 | -0.29 |
| Oct | 3.45 | 3.47 | -0.02 |
| Nov | 4.10 | 4.11 | -0.01 |
| Dec | 3.92 | 3.99 | -0.07 |
49.04 | 49.82 | -0.78 |