| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.19 | 3.13 | 0.06 |
| Feb | 3.02 | 2.94 | 0.08 |
| Mar | 4.31 | 4.08 | 0.23 |
| Apr | 5.44 | 5.18 | 0.26 |
| May | 5.07 | 4.97 | 0.10 |
| Jun | 4.47 | 4.44 | 0.03 |
| Jul | 3.86 | 3.68 | 0.18 |
| Aug | 3.23 | 3.03 | 0.20 |
| Sep | 3.32 | 3.09 | 0.23 |
| Oct | 3.59 | 3.39 | 0.20 |
| Nov | 4.06 | 3.99 | 0.07 |
| Dec | 3.42 | 3.39 | 0.03 |
46.98 | 45.31 | 1.67 |