| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.23 | 1.32 | -0.09 |
| Feb | 1.55 | 1.71 | -0.16 |
| Mar | 2.45 | 2.53 | -0.08 |
| Apr | 4.10 | 4.11 | -0.01 |
| May | 5.57 | 5.70 | -0.13 |
| Jun | 5.14 | 5.46 | -0.32 |
| Jul | 4.53 | 4.42 | 0.11 |
| Aug | 4.49 | 4.28 | 0.21 |
| Sep | 3.93 | 4.19 | -0.26 |
| Oct | 3.27 | 3.37 | -0.10 |
| Nov | 2.28 | 2.34 | -0.06 |
| Dec | 1.66 | 1.77 | -0.11 |
40.20 | 41.20 | -1.00 |