| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.73 | -0.19 |
| Feb | 2.14 | 2.48 | -0.34 |
| Mar | 2.20 | 2.37 | -0.17 |
| Apr | 1.69 | 1.81 | -0.12 |
| May | 1.41 | 1.42 | -0.01 |
| Jun | 1.10 | 1.16 | -0.06 |
| Jul | 0.66 | 0.67 | -0.01 |
| Aug | 0.87 | 0.85 | 0.02 |
| Sep | 1.41 | 1.46 | -0.05 |
| Oct | 2.81 | 2.96 | -0.15 |
| Nov | 4.00 | 4.14 | -0.14 |
| Dec | 3.35 | 3.65 | -0.30 |
25.18 | 26.70 | -1.52 |