| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.60 | -0.11 |
| Feb | 2.83 | 2.87 | -0.04 |
| Mar | 4.18 | 4.11 | 0.07 |
| Apr | 3.58 | 3.60 | -0.02 |
| May | 3.62 | 3.63 | -0.01 |
| Jun | 4.40 | 4.34 | 0.06 |
| Jul | 4.76 | 4.74 | 0.02 |
| Aug | 4.66 | 4.64 | 0.02 |
| Sep | 4.83 | 5.21 | -0.38 |
| Oct | 3.46 | 3.46 | 0.00 |
| Nov | 3.38 | 3.37 | 0.01 |
| Dec | 3.52 | 3.54 | -0.02 |
46.71 | 47.11 | -0.40 |