| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.48 | 4.27 | 0.21 |
| Feb | 5.03 | 4.86 | 0.17 |
| Mar | 3.25 | 3.19 | 0.06 |
| Apr | 1.06 | 1.19 | -0.13 |
| May | 0.57 | 0.60 | -0.03 |
| Jun | 0.10 | 0.16 | -0.06 |
| Jul | 0.05 | 0.06 | -0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.12 | 0.14 | -0.02 |
| Oct | 0.89 | 0.95 | -0.06 |
| Nov | 1.32 | 1.13 | 0.19 |
| Dec | 3.31 | 3.17 | 0.14 |
20.20 | 19.75 | 0.45 |