| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.69 | -0.08 |
| Feb | 3.36 | 3.55 | -0.19 |
| Mar | 3.55 | 3.72 | -0.17 |
| Apr | 3.15 | 3.23 | -0.08 |
| May | 3.56 | 3.76 | -0.20 |
| Jun | 4.75 | 4.97 | -0.22 |
| Jul | 5.24 | 5.09 | 0.15 |
| Aug | 5.15 | 5.03 | 0.12 |
| Sep | 4.16 | 4.29 | -0.13 |
| Oct | 3.46 | 3.53 | -0.07 |
| Nov | 2.81 | 2.93 | -0.12 |
| Dec | 3.64 | 3.76 | -0.12 |
46.44 | 47.55 | -1.11 |