| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.31 | -0.04 |
| Feb | 2.84 | 2.91 | -0.07 |
| Mar | 4.08 | 4.15 | -0.07 |
| Apr | 3.37 | 3.47 | -0.10 |
| May | 3.76 | 3.95 | -0.19 |
| Jun | 4.11 | 4.14 | -0.03 |
| Jul | 4.22 | 4.36 | -0.14 |
| Aug | 4.65 | 4.75 | -0.10 |
| Sep | 3.96 | 4.04 | -0.08 |
| Oct | 3.79 | 4.13 | -0.34 |
| Nov | 3.19 | 3.18 | 0.01 |
| Dec | 3.80 | 3.88 | -0.08 |
45.04 | 46.27 | -1.23 |