| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.03 | 2.09 | -0.06 |
| Feb | 1.88 | 1.93 | -0.05 |
| Mar | 2.51 | 2.53 | -0.02 |
| Apr | 3.79 | 3.77 | 0.02 |
| May | 4.60 | 4.71 | -0.11 |
| Jun | 4.11 | 4.12 | -0.01 |
| Jul | 4.04 | 3.67 | 0.37 |
| Aug | 3.60 | 3.36 | 0.24 |
| Sep | 3.40 | 3.47 | -0.07 |
| Oct | 3.04 | 3.05 | -0.01 |
| Nov | 2.62 | 2.67 | -0.05 |
| Dec | 2.14 | 2.14 | 0.00 |
37.76 | 37.51 | 0.25 |