| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 13.95 | 27.01 | -13.06 |
| Feb | 11.75 | 22.55 | -10.80 |
| Mar | 9.97 | 21.99 | -12.02 |
| Apr | 5.62 | 10.18 | -4.56 |
| May | 2.32 | 4.95 | -2.63 |
| Jun | 0.68 | 1.12 | -0.44 |
| Jul | 0.08 | 0.15 | -0.07 |
| Aug | 0.14 | 0.15 | -0.01 |
| Sep | 0.60 | 0.87 | -0.27 |
| Oct | 3.81 | 5.71 | -1.90 |
| Nov | 8.93 | 14.33 | -5.40 |
| Dec | 15.59 | 30.73 | -15.14 |
73.44 | 139.74 | -66.30 |