| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 1.04 | 0.99 | 0.05 |
| Mar | 1.92 | 1.96 | -0.04 |
| Apr | 2.18 | 2.37 | -0.19 |
| May | 4.17 | 4.45 | -0.28 |
| Jun | 4.05 | 3.99 | 0.06 |
| Jul | 3.73 | 3.57 | 0.16 |
| Aug | 3.56 | 3.48 | 0.08 |
| Sep | 2.13 | 2.01 | 0.12 |
| Oct | 2.26 | 2.32 | -0.06 |
| Nov | 1.22 | 1.12 | 0.10 |
| Dec | 1.00 | 1.05 | -0.05 |
28.03 | 28.05 | -0.02 |