| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.45 | 0.01 |
| Feb | 0.60 | 0.60 | 0.00 |
| Mar | 1.05 | 1.12 | -0.07 |
| Apr | 2.26 | 2.25 | 0.01 |
| May | 3.34 | 3.44 | -0.10 |
| Jun | 3.34 | 3.40 | -0.06 |
| Jul | 2.50 | 2.49 | 0.01 |
| Aug | 2.21 | 2.08 | 0.13 |
| Sep | 1.54 | 1.50 | 0.04 |
| Oct | 1.63 | 1.73 | -0.10 |
| Nov | 0.58 | 0.60 | -0.02 |
| Dec | 0.47 | 0.51 | -0.04 |
19.98 | 20.17 | -0.19 |