| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.66 | -0.09 |
| Feb | 3.67 | 3.82 | -0.15 |
| Mar | 4.06 | 4.10 | -0.04 |
| Apr | 3.93 | 3.95 | -0.02 |
| May | 4.03 | 3.90 | 0.13 |
| Jun | 3.99 | 3.87 | 0.12 |
| Jul | 4.66 | 4.98 | -0.32 |
| Aug | 3.69 | 3.95 | -0.26 |
| Sep | 2.91 | 3.09 | -0.18 |
| Oct | 2.76 | 2.57 | 0.19 |
| Nov | 3.13 | 3.03 | 0.10 |
| Dec | 3.90 | 4.21 | -0.31 |
44.30 | 45.13 | -0.83 |