| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.62 | 4.54 | 0.08 |
| Feb | 4.76 | 4.62 | 0.14 |
| Mar | 4.91 | 4.77 | 0.14 |
| Apr | 3.83 | 3.82 | 0.01 |
| May | 3.23 | 3.26 | -0.03 |
| Jun | 4.58 | 4.54 | 0.04 |
| Jul | 4.51 | 4.59 | -0.08 |
| Aug | 4.46 | 4.40 | 0.06 |
| Sep | 3.91 | 3.85 | 0.06 |
| Oct | 3.43 | 3.35 | 0.08 |
| Nov | 3.84 | 3.77 | 0.07 |
| Dec | 4.69 | 4.60 | 0.09 |
50.77 | 50.11 | 0.66 |