| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.46 | -0.19 |
| Feb | 2.77 | 2.74 | 0.03 |
| Mar | 3.62 | 3.45 | 0.17 |
| Apr | 3.95 | 3.80 | 0.15 |
| May | 4.18 | 4.26 | -0.08 |
| Jun | 4.51 | 4.52 | -0.01 |
| Jul | 4.45 | 4.62 | -0.17 |
| Aug | 4.09 | 4.16 | -0.07 |
| Sep | 3.99 | 3.93 | 0.06 |
| Oct | 3.23 | 3.25 | -0.02 |
| Nov | 3.46 | 3.35 | 0.11 |
| Dec | 3.51 | 3.37 | 0.14 |
45.03 | 44.91 | 0.12 |