| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 3.13 | 0.01 |
| Feb | 2.44 | 2.42 | 0.02 |
| Mar | 3.60 | 3.41 | 0.19 |
| Apr | 4.03 | 3.95 | 0.08 |
| May | 3.99 | 4.06 | -0.07 |
| Jun | 4.23 | 4.44 | -0.21 |
| Jul | 4.36 | 4.26 | 0.10 |
| Aug | 4.05 | 4.17 | -0.12 |
| Sep | 4.61 | 4.73 | -0.12 |
| Oct | 3.99 | 4.17 | -0.18 |
| Nov | 3.19 | 3.29 | -0.10 |
| Dec | 3.38 | 3.52 | -0.14 |
45.01 | 45.55 | -0.54 |