| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.26 | -0.04 |
| Feb | 2.57 | 2.62 | -0.05 |
| Mar | 3.37 | 3.30 | 0.07 |
| Apr | 3.60 | 3.67 | -0.07 |
| May | 3.93 | 3.92 | 0.01 |
| Jun | 4.67 | 4.47 | 0.20 |
| Jul | 4.44 | 4.36 | 0.08 |
| Aug | 3.87 | 3.89 | -0.02 |
| Sep | 3.91 | 3.87 | 0.04 |
| Oct | 3.23 | 3.22 | 0.01 |
| Nov | 3.13 | 3.22 | -0.09 |
| Dec | 3.32 | 3.26 | 0.06 |
43.26 | 43.06 | 0.20 |