| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.58 | -0.21 |
| Feb | 2.78 | 2.89 | -0.11 |
| Mar | 4.26 | 4.41 | -0.15 |
| Apr | 3.62 | 3.60 | 0.02 |
| May | 3.44 | 3.61 | -0.17 |
| Jun | 4.13 | 4.27 | -0.14 |
| Jul | 4.61 | 4.52 | 0.09 |
| Aug | 4.49 | 4.75 | -0.26 |
| Sep | 4.32 | 4.20 | 0.12 |
| Oct | 3.89 | 4.00 | -0.11 |
| Nov | 3.14 | 3.19 | -0.05 |
| Dec | 4.12 | 4.38 | -0.26 |
46.17 | 47.40 | -1.23 |