| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.65 | -0.05 |
| Feb | 2.95 | 3.04 | -0.09 |
| Mar | 3.82 | 4.03 | -0.21 |
| Apr | 3.98 | 4.02 | -0.04 |
| May | 3.91 | 3.82 | 0.09 |
| Jun | 4.14 | 4.05 | 0.09 |
| Jul | 4.23 | 4.19 | 0.04 |
| Aug | 4.29 | 4.25 | 0.04 |
| Sep | 4.15 | 4.26 | -0.11 |
| Oct | 3.21 | 3.29 | -0.08 |
| Nov | 3.14 | 3.23 | -0.09 |
| Dec | 3.44 | 3.71 | -0.27 |
44.86 | 45.54 | -0.68 |