| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.52 | -0.04 |
| Feb | 3.71 | 3.73 | -0.02 |
| Mar | 4.62 | 4.59 | 0.03 |
| Apr | 4.81 | 4.68 | 0.13 |
| May | 5.33 | 5.50 | -0.17 |
| Jun | 4.69 | 4.61 | 0.08 |
| Jul | 4.54 | 4.36 | 0.18 |
| Aug | 3.44 | 3.29 | 0.15 |
| Sep | 3.42 | 3.40 | 0.02 |
| Oct | 3.71 | 3.77 | -0.06 |
| Nov | 3.50 | 3.47 | 0.03 |
| Dec | 4.25 | 4.38 | -0.13 |
49.50 | 49.30 | 0.20 |