| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.44 | -0.14 |
| Feb | 3.01 | 2.97 | 0.04 |
| Mar | 3.98 | 4.03 | -0.05 |
| Apr | 4.74 | 4.82 | -0.08 |
| May | 4.97 | 4.98 | -0.01 |
| Jun | 4.68 | 4.73 | -0.05 |
| Jul | 4.18 | 4.00 | 0.18 |
| Aug | 3.36 | 3.32 | 0.04 |
| Sep | 3.25 | 3.29 | -0.04 |
| Oct | 3.33 | 3.31 | 0.02 |
| Nov | 3.27 | 3.28 | -0.01 |
| Dec | 3.73 | 3.74 | -0.01 |
45.80 | 45.91 | -0.11 |