| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.86 | 3.93 | -0.07 |
| Feb | 3.54 | 3.59 | -0.05 |
| Mar | 4.09 | 4.09 | 0.00 |
| Apr | 3.12 | 3.16 | -0.04 |
| May | 3.23 | 3.17 | 0.06 |
| Jun | 4.35 | 4.36 | -0.01 |
| Jul | 3.99 | 4.07 | -0.08 |
| Aug | 4.18 | 4.50 | -0.32 |
| Sep | 3.74 | 3.95 | -0.21 |
| Oct | 3.22 | 3.32 | -0.10 |
| Nov | 3.26 | 3.34 | -0.08 |
| Dec | 4.05 | 4.09 | -0.04 |
44.63 | 45.57 | -0.94 |