| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.02 | 2.17 | -0.15 |
| Feb | 1.84 | 2.00 | -0.16 |
| Mar | 2.40 | 2.36 | 0.04 |
| Apr | 3.88 | 3.93 | -0.05 |
| May | 4.59 | 4.70 | -0.11 |
| Jun | 4.41 | 4.44 | -0.03 |
| Jul | 3.83 | 3.89 | -0.06 |
| Aug | 4.19 | 4.05 | 0.14 |
| Sep | 3.32 | 3.25 | 0.07 |
| Oct | 3.54 | 3.53 | 0.01 |
| Nov | 2.60 | 2.65 | -0.05 |
| Dec | 2.18 | 2.24 | -0.06 |
38.80 | 39.21 | -0.41 |