| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.67 | 6.16 | 0.51 |
| Feb | 5.17 | 4.71 | 0.46 |
| Mar | 5.22 | 4.76 | 0.46 |
| Apr | 4.06 | 3.40 | 0.66 |
| May | 2.78 | 2.34 | 0.44 |
| Jun | 1.44 | 1.28 | 0.16 |
| Jul | 0.35 | 0.28 | 0.07 |
| Aug | 0.42 | 0.34 | 0.08 |
| Sep | 1.42 | 1.26 | 0.16 |
| Oct | 3.67 | 3.19 | 0.48 |
| Nov | 6.71 | 5.87 | 0.84 |
| Dec | 8.10 | 7.21 | 0.89 |
46.01 | 40.80 | 5.21 |