| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.46 | -0.26 |
| Feb | 2.60 | 2.75 | -0.15 |
| Mar | 3.77 | 3.89 | -0.12 |
| Apr | 3.78 | 3.93 | -0.15 |
| May | 4.23 | 4.38 | -0.15 |
| Jun | 4.16 | 4.17 | -0.01 |
| Jul | 4.01 | 3.87 | 0.14 |
| Aug | 3.48 | 3.69 | -0.21 |
| Sep | 4.72 | 4.96 | -0.24 |
| Oct | 3.76 | 3.99 | -0.23 |
| Nov | 3.16 | 3.26 | -0.10 |
| Dec | 3.46 | 3.67 | -0.21 |
44.33 | 46.02 | -1.69 |