| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.70 | -0.20 |
| Feb | 2.93 | 3.01 | -0.08 |
| Mar | 4.18 | 4.23 | -0.05 |
| Apr | 3.69 | 3.75 | -0.06 |
| May | 3.71 | 3.90 | -0.19 |
| Jun | 4.34 | 4.29 | 0.05 |
| Jul | 4.64 | 4.57 | 0.07 |
| Aug | 4.49 | 4.37 | 0.12 |
| Sep | 4.80 | 5.09 | -0.29 |
| Oct | 3.50 | 3.46 | 0.04 |
| Nov | 3.31 | 3.35 | -0.04 |
| Dec | 3.56 | 3.59 | -0.03 |
46.65 | 47.31 | -0.66 |