| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.76 | -0.26 |
| Feb | 3.37 | 3.49 | -0.12 |
| Mar | 4.36 | 4.66 | -0.30 |
| Apr | 4.09 | 4.27 | -0.18 |
| May | 3.61 | 3.63 | -0.02 |
| Jun | 4.14 | 4.12 | 0.02 |
| Jul | 3.56 | 3.74 | -0.18 |
| Aug | 3.54 | 3.69 | -0.15 |
| Sep | 3.75 | 3.76 | -0.01 |
| Oct | 4.60 | 4.79 | -0.19 |
| Nov | 3.87 | 3.89 | -0.02 |
| Dec | 4.51 | 4.81 | -0.30 |
46.90 | 48.61 | -1.71 |