| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.66 | -0.06 |
| Feb | 2.05 | 2.09 | -0.04 |
| Mar | 3.10 | 2.98 | 0.12 |
| Apr | 2.75 | 2.90 | -0.15 |
| May | 4.34 | 4.59 | -0.25 |
| Jun | 4.05 | 4.03 | 0.02 |
| Jul | 3.05 | 3.25 | -0.20 |
| Aug | 2.81 | 3.11 | -0.30 |
| Sep | 4.29 | 4.55 | -0.26 |
| Oct | 3.77 | 3.76 | 0.01 |
| Nov | 2.80 | 2.83 | -0.03 |
| Dec | 2.25 | 2.46 | -0.21 |
37.86 | 39.21 | -1.35 |