| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.80 | -0.43 |
| Feb | 3.02 | 3.46 | -0.44 |
| Mar | 4.18 | 4.56 | -0.38 |
| Apr | 4.23 | 4.58 | -0.35 |
| May | 3.58 | 3.81 | -0.23 |
| Jun | 4.13 | 4.16 | -0.03 |
| Jul | 3.65 | 3.59 | 0.06 |
| Aug | 3.53 | 4.11 | -0.58 |
| Sep | 4.09 | 4.43 | -0.34 |
| Oct | 4.34 | 4.68 | -0.34 |
| Nov | 3.66 | 3.87 | -0.21 |
| Dec | 4.15 | 4.69 | -0.54 |
45.93 | 49.74 | -3.81 |