| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.71 | -0.13 |
| Feb | 3.67 | 3.80 | -0.13 |
| Mar | 4.02 | 4.07 | -0.05 |
| Apr | 3.98 | 4.00 | -0.02 |
| May | 4.17 | 4.00 | 0.17 |
| Jun | 4.04 | 4.02 | 0.02 |
| Jul | 4.77 | 5.13 | -0.36 |
| Aug | 3.84 | 4.03 | -0.19 |
| Sep | 2.90 | 3.06 | -0.16 |
| Oct | 2.81 | 2.60 | 0.21 |
| Nov | 3.10 | 3.01 | 0.09 |
| Dec | 3.82 | 4.13 | -0.31 |
44.70 | 45.56 | -0.86 |