| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.81 | -0.13 |
| Feb | 4.37 | 4.40 | -0.03 |
| Mar | 4.75 | 4.71 | 0.04 |
| Apr | 4.88 | 5.06 | -0.18 |
| May | 5.13 | 5.39 | -0.26 |
| Jun | 4.28 | 4.42 | -0.14 |
| Jul | 4.33 | 4.60 | -0.27 |
| Aug | 3.65 | 3.63 | 0.02 |
| Sep | 3.86 | 3.80 | 0.06 |
| Oct | 3.82 | 3.93 | -0.11 |
| Nov | 3.76 | 3.77 | -0.01 |
| Dec | 4.67 | 4.73 | -0.06 |
51.18 | 52.25 | -1.07 |