| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.77 | -0.14 |
| Feb | 3.12 | 3.26 | -0.14 |
| Mar | 3.86 | 4.10 | -0.24 |
| Apr | 3.56 | 3.66 | -0.10 |
| May | 3.56 | 3.50 | 0.06 |
| Jun | 4.10 | 4.18 | -0.08 |
| Jul | 3.77 | 3.89 | -0.12 |
| Aug | 4.04 | 4.12 | -0.08 |
| Sep | 3.69 | 3.83 | -0.14 |
| Oct | 3.11 | 3.22 | -0.11 |
| Nov | 3.22 | 3.30 | -0.08 |
| Dec | 3.59 | 3.80 | -0.21 |
43.25 | 44.63 | -1.38 |