| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.76 | -0.18 |
| Feb | 3.02 | 3.17 | -0.15 |
| Mar | 3.71 | 4.01 | -0.30 |
| Apr | 3.40 | 3.56 | -0.16 |
| May | 3.61 | 3.32 | 0.29 |
| Jun | 4.04 | 4.06 | -0.02 |
| Jul | 3.75 | 3.86 | -0.11 |
| Aug | 4.12 | 4.24 | -0.12 |
| Sep | 3.68 | 3.93 | -0.25 |
| Oct | 3.17 | 3.31 | -0.14 |
| Nov | 3.15 | 3.29 | -0.14 |
| Dec | 3.43 | 3.76 | -0.33 |
42.66 | 44.27 | -1.61 |