| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.66 | 0.04 |
| Feb | 0.68 | 0.70 | -0.02 |
| Mar | 1.34 | 1.32 | 0.02 |
| Apr | 2.41 | 2.41 | 0.00 |
| May | 3.36 | 3.29 | 0.07 |
| Jun | 4.36 | 4.38 | -0.02 |
| Jul | 4.37 | 4.25 | 0.12 |
| Aug | 3.65 | 3.51 | 0.14 |
| Sep | 2.90 | 2.85 | 0.05 |
| Oct | 2.64 | 2.63 | 0.01 |
| Nov | 1.19 | 1.16 | 0.03 |
| Dec | 0.83 | 0.85 | -0.02 |
28.43 | 28.01 | 0.42 |