| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.50 | 0.01 |
| Feb | 0.75 | 0.71 | 0.04 |
| Mar | 1.35 | 1.32 | 0.03 |
| Apr | 2.83 | 2.81 | 0.02 |
| May | 3.71 | 3.63 | 0.08 |
| Jun | 4.26 | 4.19 | 0.07 |
| Jul | 3.21 | 3.33 | -0.12 |
| Aug | 3.42 | 3.34 | 0.08 |
| Sep | 2.95 | 2.95 | 0.00 |
| Oct | 2.19 | 2.14 | 0.05 |
| Nov | 1.09 | 1.01 | 0.08 |
| Dec | 0.73 | 0.75 | -0.02 |
27.00 | 26.68 | 0.32 |