| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 3.14 | -0.01 |
| Feb | 2.65 | 2.59 | 0.06 |
| Mar | 3.77 | 3.75 | 0.02 |
| Apr | 4.36 | 4.37 | -0.01 |
| May | 4.54 | 4.56 | -0.02 |
| Jun | 4.69 | 4.53 | 0.16 |
| Jul | 4.22 | 4.15 | 0.07 |
| Aug | 3.26 | 3.12 | 0.14 |
| Sep | 2.97 | 3.02 | -0.05 |
| Oct | 3.11 | 3.09 | 0.02 |
| Nov | 3.01 | 3.02 | -0.01 |
| Dec | 3.32 | 3.29 | 0.03 |
43.03 | 42.63 | 0.40 |