| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.95 | -0.05 |
| Feb | 1.09 | 1.18 | -0.09 |
| Mar | 1.94 | 2.00 | -0.06 |
| Apr | 3.75 | 3.71 | 0.04 |
| May | 4.96 | 4.98 | -0.02 |
| Jun | 5.19 | 5.13 | 0.06 |
| Jul | 4.47 | 4.34 | 0.13 |
| Aug | 4.22 | 4.32 | -0.10 |
| Sep | 3.37 | 3.28 | 0.09 |
| Oct | 2.70 | 2.69 | 0.01 |
| Nov | 1.76 | 1.83 | -0.07 |
| Dec | 1.28 | 1.35 | -0.07 |
35.63 | 35.76 | -0.13 |