| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.82 | 0.05 |
| Feb | 0.95 | 0.86 | 0.09 |
| Mar | 1.79 | 1.66 | 0.13 |
| Apr | 3.13 | 2.91 | 0.22 |
| May | 4.40 | 4.26 | 0.14 |
| Jun | 5.03 | 4.95 | 0.08 |
| Jul | 4.35 | 4.12 | 0.23 |
| Aug | 4.48 | 4.49 | -0.01 |
| Sep | 3.49 | 3.44 | 0.05 |
| Oct | 2.57 | 2.51 | 0.06 |
| Nov | 1.64 | 1.55 | 0.09 |
| Dec | 1.22 | 1.19 | 0.03 |
33.92 | 32.76 | 1.16 |