| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.75 | -0.15 |
| Feb | 3.02 | 3.10 | -0.08 |
| Mar | 4.36 | 4.26 | 0.10 |
| Apr | 3.73 | 3.80 | -0.07 |
| May | 3.90 | 3.75 | 0.15 |
| Jun | 4.08 | 4.11 | -0.03 |
| Jul | 4.25 | 4.16 | 0.09 |
| Aug | 4.64 | 4.67 | -0.03 |
| Sep | 3.88 | 3.83 | 0.05 |
| Oct | 4.04 | 4.20 | -0.16 |
| Nov | 3.35 | 3.43 | -0.08 |
| Dec | 4.35 | 4.57 | -0.22 |
47.20 | 47.63 | -0.43 |