| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.50 | 7.01 | -0.51 |
| Feb | 5.82 | 6.06 | -0.24 |
| Mar | 5.09 | 5.69 | -0.60 |
| Apr | 2.76 | 2.90 | -0.14 |
| May | 1.65 | 1.71 | -0.06 |
| Jun | 0.44 | 0.50 | -0.06 |
| Jul | 0.08 | 0.09 | -0.01 |
| Aug | 0.05 | 0.05 | 0.00 |
| Sep | 0.31 | 0.20 | 0.11 |
| Oct | 1.90 | 1.86 | 0.04 |
| Nov | 3.02 | 2.94 | 0.08 |
| Dec | 5.54 | 5.77 | -0.23 |
33.16 | 34.78 | -1.62 |