| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.70 | -0.08 |
| Feb | 3.03 | 3.05 | -0.02 |
| Mar | 3.94 | 4.14 | -0.20 |
| Apr | 3.58 | 3.71 | -0.13 |
| May | 3.50 | 3.58 | -0.08 |
| Jun | 4.01 | 4.26 | -0.25 |
| Jul | 4.45 | 4.41 | 0.04 |
| Aug | 4.28 | 4.47 | -0.19 |
| Sep | 4.83 | 5.11 | -0.28 |
| Oct | 3.22 | 3.47 | -0.25 |
| Nov | 3.29 | 3.44 | -0.15 |
| Dec | 3.53 | 3.53 | 0.00 |
45.28 | 46.87 | -1.59 |