| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.01 | 2.16 | -0.15 |
| Feb | 1.85 | 2.08 | -0.23 |
| Mar | 2.24 | 2.26 | -0.02 |
| Apr | 3.70 | 3.78 | -0.08 |
| May | 4.45 | 4.65 | -0.20 |
| Jun | 4.40 | 4.42 | -0.02 |
| Jul | 3.75 | 3.67 | 0.08 |
| Aug | 3.71 | 3.76 | -0.05 |
| Sep | 3.35 | 3.29 | 0.06 |
| Oct | 3.37 | 3.69 | -0.32 |
| Nov | 2.50 | 2.66 | -0.16 |
| Dec | 2.13 | 2.31 | -0.18 |
37.46 | 38.73 | -1.27 |