| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.26 | 4.07 | 0.19 |
| Feb | 4.00 | 4.03 | -0.03 |
| Mar | 3.05 | 2.80 | 0.25 |
| Apr | 1.43 | 1.38 | 0.05 |
| May | 0.65 | 0.62 | 0.03 |
| Jun | 0.13 | 0.17 | -0.04 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.03 | 0.03 | 0.00 |
| Sep | 0.08 | 0.06 | 0.02 |
| Oct | 0.94 | 0.87 | 0.07 |
| Nov | 2.18 | 2.00 | 0.18 |
| Dec | 4.08 | 3.92 | 0.16 |
20.83 | 19.95 | 0.88 |