| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.99 | 0.96 | 0.03 |
| Feb | 1.00 | 0.99 | 0.01 |
| Mar | 1.96 | 1.87 | 0.09 |
| Apr | 3.48 | 3.40 | 0.08 |
| May | 4.52 | 4.30 | 0.22 |
| Jun | 5.39 | 5.32 | 0.07 |
| Jul | 4.36 | 4.37 | -0.01 |
| Aug | 4.32 | 4.19 | 0.13 |
| Sep | 3.68 | 3.56 | 0.12 |
| Oct | 2.48 | 2.34 | 0.14 |
| Nov | 1.77 | 1.66 | 0.11 |
| Dec | 1.22 | 1.20 | 0.02 |
35.17 | 34.16 | 1.01 |