| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.49 | 4.45 | 0.04 |
| Feb | 4.59 | 4.69 | -0.10 |
| Mar | 3.51 | 3.32 | 0.19 |
| Apr | 1.54 | 1.38 | 0.16 |
| May | 0.67 | 0.49 | 0.18 |
| Jun | 0.15 | 0.15 | 0.00 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.02 | 0.00 |
| Sep | 0.08 | 0.06 | 0.02 |
| Oct | 0.92 | 0.77 | 0.15 |
| Nov | 2.17 | 1.83 | 0.34 |
| Dec | 4.36 | 4.07 | 0.29 |
22.51 | 21.23 | 1.28 |