| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.96 | 0.98 | -0.02 |
| Feb | 1.01 | 0.98 | 0.03 |
| Mar | 1.71 | 1.65 | 0.06 |
| Apr | 2.95 | 2.95 | 0.00 |
| May | 4.05 | 3.87 | 0.18 |
| Jun | 4.80 | 4.76 | 0.04 |
| Jul | 4.57 | 4.41 | 0.16 |
| Aug | 4.34 | 4.13 | 0.21 |
| Sep | 3.58 | 3.33 | 0.25 |
| Oct | 3.01 | 2.95 | 0.06 |
| Nov | 1.77 | 1.78 | -0.01 |
| Dec | 1.28 | 1.37 | -0.09 |
34.03 | 33.16 | 0.87 |