| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.89 | 6.23 | 0.66 |
| Feb | 5.30 | 4.79 | 0.51 |
| Mar | 5.48 | 5.00 | 0.48 |
| Apr | 4.45 | 4.09 | 0.36 |
| May | 3.01 | 2.85 | 0.16 |
| Jun | 1.62 | 1.54 | 0.08 |
| Jul | 0.36 | 0.33 | 0.03 |
| Aug | 0.47 | 0.39 | 0.08 |
| Sep | 1.54 | 1.45 | 0.09 |
| Oct | 3.93 | 3.54 | 0.39 |
| Nov | 6.96 | 6.37 | 0.59 |
| Dec | 8.27 | 7.44 | 0.83 |
48.28 | 44.02 | 4.26 |