| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.79 | -0.20 |
| Feb | 3.45 | 3.50 | -0.05 |
| Mar | 4.48 | 4.69 | -0.21 |
| Apr | 4.09 | 4.30 | -0.21 |
| May | 3.58 | 3.56 | 0.02 |
| Jun | 4.16 | 4.06 | 0.10 |
| Jul | 3.53 | 3.66 | -0.13 |
| Aug | 3.52 | 3.60 | -0.08 |
| Sep | 3.75 | 3.71 | 0.04 |
| Oct | 4.56 | 4.82 | -0.26 |
| Nov | 3.88 | 3.93 | -0.05 |
| Dec | 4.64 | 4.84 | -0.20 |
47.23 | 48.46 | -1.23 |