| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.78 | -0.19 |
| Feb | 3.02 | 3.17 | -0.15 |
| Mar | 3.70 | 4.01 | -0.31 |
| Apr | 3.36 | 3.54 | -0.18 |
| May | 3.63 | 3.25 | 0.38 |
| Jun | 4.04 | 4.01 | 0.03 |
| Jul | 3.79 | 3.79 | 0.00 |
| Aug | 4.17 | 4.23 | -0.06 |
| Sep | 3.71 | 3.93 | -0.22 |
| Oct | 3.19 | 3.36 | -0.17 |
| Nov | 3.15 | 3.28 | -0.13 |
| Dec | 3.41 | 3.75 | -0.34 |
42.76 | 44.10 | -1.34 |