| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.14 | 4.16 | -0.02 |
| Feb | 3.41 | 3.61 | -0.20 |
| Mar | 4.24 | 4.15 | 0.09 |
| Apr | 4.41 | 4.36 | 0.05 |
| May | 4.26 | 4.17 | 0.09 |
| Jun | 4.43 | 4.56 | -0.13 |
| Jul | 4.49 | 4.57 | -0.08 |
| Aug | 4.83 | 4.40 | 0.43 |
| Sep | 4.49 | 4.59 | -0.10 |
| Oct | 3.76 | 3.58 | 0.18 |
| Nov | 3.66 | 3.66 | 0.00 |
| Dec | 4.36 | 4.48 | -0.12 |
50.48 | 50.29 | 0.19 |