| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.70 | 1.88 | -0.18 |
| Feb | 1.60 | 1.54 | 0.06 |
| Mar | 1.92 | 1.77 | 0.15 |
| Apr | 2.08 | 1.89 | 0.19 |
| May | 2.18 | 2.17 | 0.01 |
| Jun | 1.21 | 1.18 | 0.03 |
| Jul | 0.52 | 0.45 | 0.07 |
| Aug | 0.66 | 0.70 | -0.04 |
| Sep | 1.16 | 1.22 | -0.06 |
| Oct | 1.71 | 1.66 | 0.05 |
| Nov | 1.32 | 1.30 | 0.02 |
| Dec | 1.62 | 1.59 | 0.03 |
17.68 | 17.35 | 0.33 |