| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.43 | 1.53 | -0.10 |
| Feb | 1.43 | 1.60 | -0.17 |
| Mar | 2.13 | 2.14 | -0.01 |
| Apr | 3.70 | 3.77 | -0.07 |
| May | 4.19 | 4.29 | -0.10 |
| Jun | 5.44 | 5.32 | 0.12 |
| Jul | 4.33 | 4.35 | -0.02 |
| Aug | 4.02 | 4.10 | -0.08 |
| Sep | 3.59 | 3.46 | 0.13 |
| Oct | 2.93 | 2.85 | 0.08 |
| Nov | 2.24 | 2.20 | 0.04 |
| Dec | 1.61 | 1.76 | -0.15 |
37.04 | 37.37 | -0.33 |