| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.00 | 3.14 | -0.14 |
| Feb | 2.41 | 2.41 | 0.00 |
| Mar | 3.22 | 3.37 | -0.15 |
| Apr | 3.82 | 3.80 | 0.02 |
| May | 4.09 | 4.19 | -0.10 |
| Jun | 4.69 | 4.61 | 0.08 |
| Jul | 4.12 | 4.01 | 0.11 |
| Aug | 3.54 | 3.49 | 0.05 |
| Sep | 3.26 | 3.38 | -0.12 |
| Oct | 2.87 | 2.86 | 0.01 |
| Nov | 2.92 | 2.95 | -0.03 |
| Dec | 2.98 | 2.99 | -0.01 |
40.92 | 41.20 | -0.28 |