| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.47 | -0.05 |
| Feb | 1.47 | 1.53 | -0.06 |
| Mar | 2.14 | 2.13 | 0.01 |
| Apr | 3.74 | 3.87 | -0.13 |
| May | 4.19 | 4.32 | -0.13 |
| Jun | 5.46 | 5.44 | 0.02 |
| Jul | 4.59 | 4.41 | 0.18 |
| Aug | 4.19 | 4.24 | -0.05 |
| Sep | 3.64 | 3.50 | 0.14 |
| Oct | 2.88 | 2.92 | -0.04 |
| Nov | 2.26 | 2.29 | -0.03 |
| Dec | 1.66 | 1.75 | -0.09 |
37.64 | 37.87 | -0.23 |