| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.68 | -0.11 |
| Feb | 2.94 | 3.05 | -0.11 |
| Mar | 3.87 | 4.06 | -0.19 |
| Apr | 3.78 | 3.93 | -0.15 |
| May | 3.72 | 3.56 | 0.16 |
| Jun | 4.24 | 4.09 | 0.15 |
| Jul | 4.18 | 4.22 | -0.04 |
| Aug | 4.41 | 4.41 | 0.00 |
| Sep | 4.26 | 4.60 | -0.34 |
| Oct | 3.24 | 3.28 | -0.04 |
| Nov | 3.30 | 3.44 | -0.14 |
| Dec | 3.36 | 3.62 | -0.26 |
44.87 | 45.94 | -1.07 |