| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.77 | -0.22 |
| Feb | 2.93 | 3.01 | -0.08 |
| Mar | 4.24 | 4.25 | -0.01 |
| Apr | 3.80 | 3.86 | -0.06 |
| May | 3.71 | 3.93 | -0.22 |
| Jun | 4.51 | 4.43 | 0.08 |
| Jul | 4.46 | 4.42 | 0.04 |
| Aug | 4.31 | 4.25 | 0.06 |
| Sep | 4.74 | 4.99 | -0.25 |
| Oct | 3.51 | 3.41 | 0.10 |
| Nov | 3.37 | 3.37 | 0.00 |
| Dec | 3.62 | 3.60 | 0.02 |
46.75 | 47.29 | -0.54 |