| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.74 | -0.10 |
| Feb | 3.15 | 3.25 | -0.10 |
| Mar | 3.91 | 4.10 | -0.19 |
| Apr | 3.60 | 3.65 | -0.05 |
| May | 3.52 | 3.48 | 0.04 |
| Jun | 4.12 | 4.17 | -0.05 |
| Jul | 3.73 | 3.79 | -0.06 |
| Aug | 4.07 | 4.06 | 0.01 |
| Sep | 3.66 | 3.76 | -0.10 |
| Oct | 3.12 | 3.18 | -0.06 |
| Nov | 3.26 | 3.30 | -0.04 |
| Dec | 3.63 | 3.77 | -0.14 |
43.41 | 44.25 | -0.84 |