| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.48 | -0.01 |
| Feb | 0.65 | 0.67 | -0.02 |
| Mar | 1.20 | 1.28 | -0.08 |
| Apr | 1.88 | 1.94 | -0.06 |
| May | 3.40 | 3.45 | -0.05 |
| Jun | 2.95 | 2.90 | 0.05 |
| Jul | 3.43 | 3.61 | -0.18 |
| Aug | 2.93 | 3.02 | -0.09 |
| Sep | 1.71 | 1.79 | -0.08 |
| Oct | 1.62 | 1.61 | 0.01 |
| Nov | 0.74 | 0.74 | 0.00 |
| Dec | 0.67 | 0.74 | -0.07 |
21.65 | 22.23 | -0.58 |