| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.68 | -0.01 |
| Feb | 0.84 | 0.79 | 0.05 |
| Mar | 1.58 | 1.57 | 0.01 |
| Apr | 2.48 | 2.44 | 0.04 |
| May | 4.75 | 4.93 | -0.18 |
| Jun | 4.27 | 4.25 | 0.02 |
| Jul | 3.63 | 3.52 | 0.11 |
| Aug | 3.48 | 3.40 | 0.08 |
| Sep | 2.69 | 2.77 | -0.08 |
| Oct | 2.26 | 2.25 | 0.01 |
| Nov | 1.29 | 1.29 | 0.00 |
| Dec | 1.07 | 1.06 | 0.01 |
29.01 | 28.95 | 0.06 |