| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.03 | 0.50 |
| Feb | 2.46 | 2.12 | 0.34 |
| Mar | 2.15 | 1.65 | 0.50 |
| Apr | 1.34 | 1.25 | 0.09 |
| May | 1.24 | 1.23 | 0.01 |
| Jun | 0.69 | 0.65 | 0.04 |
| Jul | 0.44 | 0.42 | 0.02 |
| Aug | 0.30 | 0.32 | -0.02 |
| Sep | 0.35 | 0.33 | 0.02 |
| Oct | 1.22 | 1.16 | 0.06 |
| Nov | 2.38 | 2.08 | 0.30 |
| Dec | 3.83 | 3.70 | 0.13 |
19.93 | 17.94 | 1.99 |