| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.94 | 3.89 | 0.05 |
| Feb | 3.96 | 4.06 | -0.10 |
| Mar | 4.34 | 4.38 | -0.04 |
| Apr | 3.93 | 4.17 | -0.24 |
| May | 4.37 | 4.56 | -0.19 |
| Jun | 4.02 | 4.16 | -0.14 |
| Jul | 2.83 | 2.70 | 0.13 |
| Aug | 2.60 | 2.80 | -0.20 |
| Sep | 3.28 | 3.22 | 0.06 |
| Oct | 4.42 | 4.52 | -0.10 |
| Nov | 3.72 | 3.94 | -0.22 |
| Dec | 4.40 | 4.59 | -0.19 |
45.81 | 46.99 | -1.18 |