| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.43 | -0.03 |
| Feb | 2.81 | 2.72 | 0.09 |
| Mar | 3.91 | 4.09 | -0.18 |
| Apr | 3.45 | 3.37 | 0.08 |
| May | 4.24 | 4.21 | 0.03 |
| Jun | 3.76 | 3.53 | 0.23 |
| Jul | 4.32 | 4.06 | 0.26 |
| Aug | 3.77 | 3.75 | 0.02 |
| Sep | 4.48 | 4.60 | -0.12 |
| Oct | 3.71 | 3.60 | 0.11 |
| Nov | 3.42 | 3.35 | 0.07 |
| Dec | 3.62 | 3.54 | 0.08 |
44.89 | 44.25 | 0.64 |