| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.67 | -0.21 |
| Feb | 2.80 | 3.00 | -0.20 |
| Mar | 4.08 | 4.17 | -0.09 |
| Apr | 3.95 | 4.10 | -0.15 |
| May | 3.99 | 4.03 | -0.04 |
| Jun | 4.66 | 4.73 | -0.07 |
| Jul | 4.59 | 4.60 | -0.01 |
| Aug | 4.48 | 4.70 | -0.22 |
| Sep | 4.40 | 4.49 | -0.09 |
| Oct | 4.41 | 4.43 | -0.02 |
| Nov | 3.63 | 3.67 | -0.04 |
| Dec | 4.33 | 4.50 | -0.17 |
48.78 | 50.09 | -1.31 |