| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.14 | 2.13 | 0.01 |
| Feb | 1.87 | 1.94 | -0.07 |
| Mar | 2.40 | 2.31 | 0.09 |
| Apr | 3.81 | 3.75 | 0.06 |
| May | 4.58 | 4.53 | 0.05 |
| Jun | 4.55 | 4.45 | 0.10 |
| Jul | 4.30 | 4.41 | -0.11 |
| Aug | 4.05 | 3.93 | 0.12 |
| Sep | 3.40 | 3.37 | 0.03 |
| Oct | 3.37 | 3.32 | 0.05 |
| Nov | 2.64 | 2.60 | 0.04 |
| Dec | 2.19 | 2.14 | 0.05 |
39.30 | 38.88 | 0.42 |