| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.36 | -0.16 |
| Feb | 2.86 | 2.97 | -0.11 |
| Mar | 3.64 | 3.80 | -0.16 |
| Apr | 3.85 | 3.96 | -0.11 |
| May | 3.61 | 3.66 | -0.05 |
| Jun | 4.33 | 4.48 | -0.15 |
| Jul | 4.06 | 4.08 | -0.02 |
| Aug | 4.02 | 4.13 | -0.11 |
| Sep | 4.39 | 4.47 | -0.08 |
| Oct | 4.66 | 4.75 | -0.09 |
| Nov | 3.59 | 3.60 | -0.01 |
| Dec | 4.02 | 4.28 | -0.26 |
46.23 | 47.54 | -1.31 |