| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.60 | -0.15 |
| Feb | 3.11 | 3.15 | -0.04 |
| Mar | 3.73 | 3.87 | -0.14 |
| Apr | 3.46 | 3.48 | -0.02 |
| May | 3.53 | 3.49 | 0.04 |
| Jun | 4.62 | 4.70 | -0.08 |
| Jul | 4.49 | 5.40 | -0.91 |
| Aug | 4.29 | 4.80 | -0.51 |
| Sep | 5.11 | 5.30 | -0.19 |
| Oct | 3.38 | 3.47 | -0.09 |
| Nov | 3.42 | 3.40 | 0.02 |
| Dec | 3.66 | 3.60 | 0.06 |
46.25 | 48.26 | -2.01 |