| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.73 | -0.07 |
| Feb | 2.86 | 3.12 | -0.26 |
| Mar | 4.13 | 4.35 | -0.22 |
| Apr | 4.06 | 4.20 | -0.14 |
| May | 4.18 | 4.33 | -0.15 |
| Jun | 4.76 | 5.06 | -0.30 |
| Jul | 4.80 | 4.71 | 0.09 |
| Aug | 4.59 | 4.66 | -0.07 |
| Sep | 4.48 | 4.56 | -0.08 |
| Oct | 4.66 | 4.93 | -0.27 |
| Nov | 3.61 | 3.76 | -0.15 |
| Dec | 4.50 | 4.73 | -0.23 |
50.29 | 52.14 | -1.85 |