| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.62 | 0.29 |
| Feb | 3.84 | 3.61 | 0.23 |
| Mar | 2.97 | 2.61 | 0.36 |
| Apr | 1.39 | 1.35 | 0.04 |
| May | 0.61 | 0.52 | 0.09 |
| Jun | 0.14 | 0.16 | -0.02 |
| Jul | 0.01 | 0.01 | 0.00 |
| Aug | 0.03 | 0.04 | -0.01 |
| Sep | 0.08 | 0.08 | 0.00 |
| Oct | 0.88 | 0.77 | 0.11 |
| Nov | 1.91 | 1.73 | 0.18 |
| Dec | 3.87 | 3.74 | 0.13 |
19.64 | 18.24 | 1.40 |