| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.81 | 6.51 | 0.30 |
| Feb | 5.25 | 5.05 | 0.20 |
| Mar | 5.62 | 5.41 | 0.21 |
| Apr | 4.85 | 4.72 | 0.13 |
| May | 3.31 | 3.25 | 0.06 |
| Jun | 1.95 | 1.94 | 0.01 |
| Jul | 0.40 | 0.41 | -0.01 |
| Aug | 0.53 | 0.48 | 0.05 |
| Sep | 1.61 | 1.66 | -0.05 |
| Oct | 4.08 | 4.00 | 0.08 |
| Nov | 7.17 | 6.75 | 0.42 |
| Dec | 8.10 | 7.80 | 0.30 |
49.68 | 47.98 | 1.70 |