| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.64 | -0.05 |
| Feb | 3.29 | 3.25 | 0.04 |
| Mar | 4.03 | 4.01 | 0.02 |
| Apr | 3.98 | 4.06 | -0.08 |
| May | 4.63 | 4.67 | -0.04 |
| Jun | 4.51 | 4.44 | 0.07 |
| Jul | 4.54 | 4.16 | 0.38 |
| Aug | 4.14 | 3.85 | 0.29 |
| Sep | 3.92 | 3.89 | 0.03 |
| Oct | 3.38 | 3.26 | 0.12 |
| Nov | 3.19 | 3.25 | -0.06 |
| Dec | 3.79 | 3.75 | 0.04 |
46.99 | 46.23 | 0.76 |