| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.22 | 2.17 | 0.05 |
| Feb | 1.80 | 1.86 | -0.06 |
| Mar | 2.32 | 2.37 | -0.05 |
| Apr | 3.64 | 3.51 | 0.13 |
| May | 4.37 | 4.25 | 0.12 |
| Jun | 4.83 | 4.84 | -0.01 |
| Jul | 4.34 | 4.29 | 0.05 |
| Aug | 3.65 | 3.63 | 0.02 |
| Sep | 3.05 | 3.24 | -0.19 |
| Oct | 3.23 | 3.27 | -0.04 |
| Nov | 2.61 | 2.63 | -0.02 |
| Dec | 2.09 | 2.14 | -0.05 |
38.15 | 38.20 | -0.05 |