| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.87 | -0.14 |
| Feb | 0.77 | 0.88 | -0.11 |
| Mar | 1.54 | 1.58 | -0.04 |
| Apr | 2.93 | 2.98 | -0.05 |
| May | 4.16 | 4.31 | -0.15 |
| Jun | 4.61 | 4.59 | 0.02 |
| Jul | 4.10 | 4.17 | -0.07 |
| Aug | 4.27 | 4.34 | -0.07 |
| Sep | 3.37 | 3.30 | 0.07 |
| Oct | 2.66 | 2.65 | 0.01 |
| Nov | 1.52 | 1.58 | -0.06 |
| Dec | 1.04 | 1.23 | -0.19 |
31.70 | 32.48 | -0.78 |