| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.26 | 0.03 |
| Feb | 4.12 | 4.08 | 0.04 |
| Mar | 4.51 | 4.67 | -0.16 |
| Apr | 3.43 | 3.44 | -0.01 |
| May | 2.93 | 2.90 | 0.03 |
| Jun | 4.86 | 4.93 | -0.07 |
| Jul | 4.74 | 4.68 | 0.06 |
| Aug | 4.84 | 4.90 | -0.06 |
| Sep | 3.79 | 4.10 | -0.31 |
| Oct | 2.69 | 2.71 | -0.02 |
| Nov | 2.76 | 2.76 | 0.00 |
| Dec | 4.05 | 4.04 | 0.01 |
47.01 | 47.47 | -0.46 |