| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.50 | 0.49 | 0.01 |
| Feb | 0.67 | 0.60 | 0.07 |
| Mar | 1.38 | 1.37 | 0.01 |
| Apr | 2.60 | 2.45 | 0.15 |
| May | 4.36 | 4.28 | 0.08 |
| Jun | 3.80 | 3.67 | 0.13 |
| Jul | 3.61 | 3.65 | -0.04 |
| Aug | 3.07 | 3.19 | -0.12 |
| Sep | 1.90 | 1.85 | 0.05 |
| Oct | 1.94 | 2.06 | -0.12 |
| Nov | 1.05 | 0.98 | 0.07 |
| Dec | 0.72 | 0.69 | 0.03 |
25.60 | 25.28 | 0.32 |