| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.73 | -0.15 |
| Feb | 3.08 | 3.14 | -0.06 |
| Mar | 3.78 | 4.04 | -0.26 |
| Apr | 3.55 | 3.63 | -0.08 |
| May | 3.62 | 3.36 | 0.26 |
| Jun | 4.15 | 4.15 | 0.00 |
| Jul | 3.82 | 3.98 | -0.16 |
| Aug | 4.12 | 4.29 | -0.17 |
| Sep | 3.79 | 3.99 | -0.20 |
| Oct | 3.22 | 3.35 | -0.13 |
| Nov | 3.24 | 3.29 | -0.05 |
| Dec | 3.48 | 3.70 | -0.22 |
43.43 | 44.65 | -1.22 |