| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.32 | 0.05 |
| Feb | 0.54 | 0.50 | 0.04 |
| Mar | 1.00 | 1.00 | 0.00 |
| Apr | 2.23 | 2.21 | 0.02 |
| May | 3.33 | 3.52 | -0.19 |
| Jun | 3.64 | 3.65 | -0.01 |
| Jul | 3.07 | 3.06 | 0.01 |
| Aug | 2.57 | 2.50 | 0.07 |
| Sep | 1.72 | 1.63 | 0.09 |
| Oct | 1.71 | 1.76 | -0.05 |
| Nov | 0.55 | 0.53 | 0.02 |
| Dec | 0.40 | 0.42 | -0.02 |
21.13 | 21.10 | 0.03 |