| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.34 | 0.33 | 0.01 |
| Feb | 0.55 | 0.49 | 0.06 |
| Mar | 1.09 | 0.95 | 0.14 |
| Apr | 2.11 | 2.07 | 0.04 |
| May | 3.88 | 3.78 | 0.10 |
| Jun | 3.26 | 3.06 | 0.20 |
| Jul | 2.47 | 2.36 | 0.11 |
| Aug | 1.64 | 1.91 | -0.27 |
| Sep | 1.38 | 1.38 | 0.00 |
| Oct | 1.46 | 1.51 | -0.05 |
| Nov | 0.54 | 0.50 | 0.04 |
| Dec | 0.41 | 0.38 | 0.03 |
19.13 | 18.72 | 0.41 |