| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.98 | 1.04 | -0.06 |
| Feb | 0.97 | 1.01 | -0.04 |
| Mar | 1.43 | 1.55 | -0.12 |
| Apr | 2.58 | 2.78 | -0.20 |
| May | 3.33 | 3.43 | -0.10 |
| Jun | 4.07 | 4.28 | -0.21 |
| Jul | 4.06 | 4.11 | -0.05 |
| Aug | 3.78 | 3.84 | -0.06 |
| Sep | 3.20 | 3.37 | -0.17 |
| Oct | 3.06 | 3.06 | 0.00 |
| Nov | 1.80 | 1.95 | -0.15 |
| Dec | 1.38 | 1.51 | -0.13 |
30.64 | 31.93 | -1.29 |