| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.73 | 0.02 |
| Feb | 1.13 | 0.95 | 0.18 |
| Mar | 2.01 | 1.99 | 0.02 |
| Apr | 2.38 | 2.29 | 0.09 |
| May | 4.04 | 4.32 | -0.28 |
| Jun | 4.13 | 4.08 | 0.05 |
| Jul | 3.54 | 3.68 | -0.14 |
| Aug | 3.59 | 3.37 | 0.22 |
| Sep | 2.22 | 2.18 | 0.04 |
| Oct | 2.38 | 2.29 | 0.09 |
| Nov | 1.22 | 1.14 | 0.08 |
| Dec | 1.05 | 1.10 | -0.05 |
28.44 | 28.12 | 0.32 |