| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.62 | 1.58 | 0.04 |
| Feb | 1.42 | 1.25 | 0.17 |
| Mar | 1.11 | 1.02 | 0.09 |
| Apr | 0.54 | 0.55 | -0.01 |
| May | 0.65 | 0.66 | -0.01 |
| Jun | 0.44 | 0.43 | 0.01 |
| Jul | 0.29 | 0.26 | 0.03 |
| Aug | 0.21 | 0.32 | -0.11 |
| Sep | 0.24 | 0.24 | 0.00 |
| Oct | 0.66 | 0.64 | 0.02 |
| Nov | 0.85 | 0.83 | 0.02 |
| Dec | 1.57 | 1.53 | 0.04 |
9.60 | 9.31 | 0.29 |