| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.56 | -0.14 |
| Feb | 3.66 | 3.64 | 0.02 |
| Mar | 4.22 | 4.38 | -0.16 |
| Apr | 4.10 | 4.12 | -0.02 |
| May | 4.62 | 4.82 | -0.20 |
| Jun | 4.56 | 4.75 | -0.19 |
| Jul | 5.00 | 5.21 | -0.21 |
| Aug | 3.96 | 3.96 | 0.00 |
| Sep | 3.28 | 3.35 | -0.07 |
| Oct | 2.99 | 3.00 | -0.01 |
| Nov | 2.75 | 2.85 | -0.10 |
| Dec | 4.03 | 4.18 | -0.15 |
46.59 | 47.82 | -1.23 |