| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.33 | -0.10 |
| Feb | 2.83 | 2.90 | -0.07 |
| Mar | 4.11 | 4.17 | -0.06 |
| Apr | 3.37 | 3.46 | -0.09 |
| May | 3.75 | 3.94 | -0.19 |
| Jun | 4.16 | 4.14 | 0.02 |
| Jul | 4.30 | 4.48 | -0.18 |
| Aug | 4.53 | 4.65 | -0.12 |
| Sep | 4.06 | 4.10 | -0.04 |
| Oct | 3.83 | 4.14 | -0.31 |
| Nov | 3.22 | 3.23 | -0.01 |
| Dec | 3.76 | 3.86 | -0.10 |
45.15 | 46.40 | -1.25 |