| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.79 | -0.02 |
| Feb | 0.88 | 0.84 | 0.04 |
| Mar | 1.50 | 1.35 | 0.15 |
| Apr | 2.73 | 2.82 | -0.09 |
| May | 4.03 | 3.97 | 0.06 |
| Jun | 4.33 | 4.23 | 0.10 |
| Jul | 4.28 | 4.24 | 0.04 |
| Aug | 4.03 | 3.88 | 0.15 |
| Sep | 3.32 | 3.44 | -0.12 |
| Oct | 2.93 | 2.91 | 0.02 |
| Nov | 1.66 | 1.54 | 0.12 |
| Dec | 1.14 | 1.15 | -0.01 |
31.60 | 31.16 | 0.44 |