| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.58 | -0.04 |
| Feb | 2.90 | 2.91 | -0.01 |
| Mar | 4.08 | 3.99 | 0.09 |
| Apr | 3.67 | 3.74 | -0.07 |
| May | 3.76 | 3.95 | -0.19 |
| Jun | 4.51 | 4.25 | 0.26 |
| Jul | 5.34 | 5.40 | -0.06 |
| Aug | 5.08 | 5.37 | -0.29 |
| Sep | 5.06 | 5.02 | 0.04 |
| Oct | 3.93 | 4.33 | -0.40 |
| Nov | 3.10 | 3.09 | 0.01 |
| Dec | 3.62 | 3.63 | -0.01 |
48.59 | 49.26 | -0.67 |