| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 3.97 | 0.35 |
| Feb | 3.93 | 4.14 | -0.21 |
| Mar | 3.21 | 3.43 | -0.22 |
| Apr | 1.47 | 1.50 | -0.03 |
| May | 0.64 | 0.77 | -0.13 |
| Jun | 0.13 | 0.18 | -0.05 |
| Jul | 0.00 | 0.01 | -0.01 |
| Aug | 0.02 | 0.04 | -0.02 |
| Sep | 0.08 | 0.08 | 0.00 |
| Oct | 0.99 | 0.95 | 0.04 |
| Nov | 2.10 | 2.15 | -0.05 |
| Dec | 4.34 | 4.06 | 0.28 |
21.23 | 21.28 | -0.05 |