| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 12.45 | 11.55 | 0.90 |
| Feb | 9.18 | 8.67 | 0.51 |
| Mar | 9.69 | 8.35 | 1.34 |
| Apr | 7.14 | 5.86 | 1.28 |
| May | 4.34 | 3.70 | 0.64 |
| Jun | 2.95 | 2.68 | 0.27 |
| Jul | 0.72 | 0.64 | 0.08 |
| Aug | 1.00 | 0.85 | 0.15 |
| Sep | 2.70 | 2.20 | 0.50 |
| Oct | 7.33 | 6.09 | 1.24 |
| Nov | 11.95 | 11.05 | 0.90 |
| Dec | 13.71 | 12.96 | 0.75 |
83.16 | 74.60 | 8.56 |