| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.70 | 6.24 | 0.46 |
| Feb | 5.16 | 4.85 | 0.31 |
| Mar | 5.33 | 4.99 | 0.34 |
| Apr | 4.28 | 3.85 | 0.43 |
| May | 2.91 | 2.71 | 0.20 |
| Jun | 1.56 | 1.38 | 0.18 |
| Jul | 0.35 | 0.34 | 0.01 |
| Aug | 0.44 | 0.39 | 0.05 |
| Sep | 1.51 | 1.42 | 0.09 |
| Oct | 3.80 | 3.40 | 0.40 |
| Nov | 6.75 | 6.24 | 0.51 |
| Dec | 8.03 | 7.53 | 0.50 |
46.82 | 43.34 | 3.48 |