| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.43 | 0.01 |
| Feb | 3.18 | 3.10 | 0.08 |
| Mar | 3.41 | 3.44 | -0.03 |
| Apr | 3.20 | 3.27 | -0.07 |
| May | 3.25 | 3.12 | 0.13 |
| Jun | 5.44 | 5.59 | -0.15 |
| Jul | 5.76 | 5.54 | 0.22 |
| Aug | 6.27 | 6.61 | -0.34 |
| Sep | 4.58 | 4.71 | -0.13 |
| Oct | 3.89 | 4.02 | -0.13 |
| Nov | 2.52 | 2.54 | -0.02 |
| Dec | 3.17 | 3.36 | -0.19 |
48.11 | 48.73 | -0.62 |