| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.55 | 0.07 |
| Feb | 0.73 | 0.76 | -0.03 |
| Mar | 1.55 | 1.38 | 0.17 |
| Apr | 2.26 | 2.20 | 0.06 |
| May | 2.55 | 2.40 | 0.15 |
| Jun | 1.77 | 1.65 | 0.12 |
| Jul | 1.95 | 1.66 | 0.29 |
| Aug | 1.80 | 1.57 | 0.23 |
| Sep | 1.34 | 1.30 | 0.04 |
| Oct | 1.11 | 1.15 | -0.04 |
| Nov | 0.90 | 0.88 | 0.02 |
| Dec | 0.59 | 0.61 | -0.02 |
17.17 | 16.11 | 1.06 |