| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.17 | 0.41 |
| Feb | 3.04 | 2.75 | 0.29 |
| Mar | 3.84 | 3.53 | 0.31 |
| Apr | 3.77 | 3.43 | 0.34 |
| May | 3.77 | 3.59 | 0.18 |
| Jun | 4.04 | 3.91 | 0.13 |
| Jul | 4.58 | 4.30 | 0.28 |
| Aug | 3.97 | 3.80 | 0.17 |
| Sep | 3.75 | 3.42 | 0.33 |
| Oct | 2.94 | 2.64 | 0.30 |
| Nov | 3.17 | 2.88 | 0.29 |
| Dec | 3.60 | 3.25 | 0.35 |
44.05 | 40.67 | 3.38 |