| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.38 | 0.33 |
| Feb | 3.61 | 3.44 | 0.17 |
| Mar | 2.83 | 2.54 | 0.29 |
| Apr | 1.29 | 1.19 | 0.10 |
| May | 0.55 | 0.44 | 0.11 |
| Jun | 0.12 | 0.13 | -0.01 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.06 | 0.02 |
| Oct | 0.80 | 0.69 | 0.11 |
| Nov | 1.80 | 1.61 | 0.19 |
| Dec | 3.62 | 3.41 | 0.21 |
18.43 | 16.92 | 1.51 |