| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.52 | -0.09 |
| Feb | 3.48 | 3.51 | -0.03 |
| Mar | 4.54 | 4.61 | -0.07 |
| Apr | 4.54 | 4.58 | -0.04 |
| May | 5.20 | 5.27 | -0.07 |
| Jun | 4.83 | 4.86 | -0.03 |
| Jul | 5.03 | 4.86 | 0.17 |
| Aug | 3.60 | 3.44 | 0.16 |
| Sep | 3.64 | 3.54 | 0.10 |
| Oct | 3.58 | 3.46 | 0.12 |
| Nov | 3.26 | 3.33 | -0.07 |
| Dec | 3.97 | 4.11 | -0.14 |
49.10 | 49.09 | 0.01 |