| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.51 | 0.03 |
| Feb | 2.82 | 2.80 | 0.02 |
| Mar | 4.14 | 4.13 | 0.01 |
| Apr | 3.80 | 3.79 | 0.01 |
| May | 4.10 | 3.96 | 0.14 |
| Jun | 4.48 | 4.41 | 0.07 |
| Jul | 4.96 | 4.94 | 0.02 |
| Aug | 4.58 | 4.46 | 0.12 |
| Sep | 4.41 | 4.14 | 0.27 |
| Oct | 4.29 | 4.19 | 0.10 |
| Nov | 3.29 | 3.28 | 0.01 |
| Dec | 4.26 | 4.23 | 0.03 |
48.67 | 47.84 | 0.83 |