| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.89 | 1.78 | 0.11 |
| Feb | 1.31 | 1.33 | -0.02 |
| Mar | 1.55 | 1.42 | 0.13 |
| Apr | 1.49 | 1.43 | 0.06 |
| May | 2.04 | 2.18 | -0.14 |
| Jun | 2.13 | 2.26 | -0.13 |
| Jul | 1.06 | 1.06 | 0.00 |
| Aug | 0.75 | 0.67 | 0.08 |
| Sep | 0.96 | 0.89 | 0.07 |
| Oct | 1.50 | 1.23 | 0.27 |
| Nov | 2.01 | 1.76 | 0.25 |
| Dec | 2.14 | 2.11 | 0.03 |
18.83 | 18.12 | 0.71 |