| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.73 | 2.04 | -0.31 |
| Feb | 1.58 | 1.80 | -0.22 |
| Mar | 1.21 | 1.64 | -0.43 |
| Apr | 1.04 | 1.11 | -0.07 |
| May | 1.07 | 1.23 | -0.16 |
| Jun | 0.53 | 0.70 | -0.17 |
| Jul | 1.91 | 1.90 | 0.01 |
| Aug | 2.20 | 2.22 | -0.02 |
| Sep | 2.13 | 2.32 | -0.19 |
| Oct | 1.64 | 1.58 | 0.06 |
| Nov | 1.37 | 1.49 | -0.12 |
| Dec | 1.50 | 1.72 | -0.22 |
17.91 | 19.75 | -1.84 |