| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.24 | -0.01 |
| Feb | 4.17 | 4.15 | 0.02 |
| Mar | 4.50 | 4.56 | -0.06 |
| Apr | 3.63 | 3.75 | -0.12 |
| May | 2.73 | 2.60 | 0.13 |
| Jun | 4.22 | 4.23 | -0.01 |
| Jul | 4.63 | 4.58 | 0.05 |
| Aug | 4.36 | 4.23 | 0.13 |
| Sep | 3.60 | 3.48 | 0.12 |
| Oct | 2.71 | 2.83 | -0.12 |
| Nov | 3.27 | 3.26 | 0.01 |
| Dec | 4.54 | 4.50 | 0.04 |
46.59 | 46.41 | 0.18 |