| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.66 | -0.10 |
| Feb | 2.86 | 2.93 | -0.07 |
| Mar | 3.91 | 3.97 | -0.06 |
| Apr | 3.69 | 3.82 | -0.13 |
| May | 3.61 | 3.60 | 0.01 |
| Jun | 4.30 | 4.35 | -0.05 |
| Jul | 4.13 | 4.09 | 0.04 |
| Aug | 4.43 | 4.12 | 0.31 |
| Sep | 4.31 | 4.64 | -0.33 |
| Oct | 3.23 | 3.20 | 0.03 |
| Nov | 3.25 | 3.35 | -0.10 |
| Dec | 3.31 | 3.47 | -0.16 |
44.59 | 45.20 | -0.61 |