| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.07 | 0.22 |
| Feb | 3.51 | 3.28 | 0.23 |
| Mar | 4.26 | 3.94 | 0.32 |
| Apr | 4.33 | 4.06 | 0.27 |
| May | 4.24 | 4.07 | 0.17 |
| Jun | 4.46 | 4.40 | 0.06 |
| Jul | 4.42 | 4.55 | -0.13 |
| Aug | 4.65 | 4.64 | 0.01 |
| Sep | 4.36 | 4.21 | 0.15 |
| Oct | 3.62 | 3.18 | 0.44 |
| Nov | 3.80 | 3.44 | 0.36 |
| Dec | 4.26 | 4.03 | 0.23 |
50.20 | 47.87 | 2.33 |