| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.66 | -0.18 |
| Feb | 2.81 | 2.94 | -0.13 |
| Mar | 3.76 | 3.79 | -0.03 |
| Apr | 3.71 | 3.83 | -0.12 |
| May | 4.34 | 4.34 | 0.00 |
| Jun | 4.22 | 4.32 | -0.10 |
| Jul | 3.76 | 4.08 | -0.32 |
| Aug | 3.54 | 3.52 | 0.02 |
| Sep | 4.43 | 4.61 | -0.18 |
| Oct | 3.44 | 3.36 | 0.08 |
| Nov | 3.29 | 3.30 | -0.01 |
| Dec | 3.56 | 3.73 | -0.17 |
44.34 | 45.48 | -1.14 |