| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.60 | -0.09 |
| Feb | 2.83 | 2.87 | -0.04 |
| Mar | 4.20 | 4.11 | 0.09 |
| Apr | 3.61 | 3.59 | 0.02 |
| May | 3.66 | 3.64 | 0.02 |
| Jun | 4.46 | 4.36 | 0.10 |
| Jul | 4.80 | 4.76 | 0.04 |
| Aug | 4.64 | 4.66 | -0.02 |
| Sep | 4.84 | 5.21 | -0.37 |
| Oct | 3.47 | 3.44 | 0.03 |
| Nov | 3.38 | 3.36 | 0.02 |
| Dec | 3.50 | 3.52 | -0.02 |
46.90 | 47.12 | -0.22 |