| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.83 | 1.75 | 0.08 |
| Feb | 1.77 | 1.62 | 0.15 |
| Mar | 1.84 | 1.61 | 0.23 |
| Apr | 2.32 | 2.07 | 0.25 |
| May | 2.06 | 1.97 | 0.09 |
| Jun | 1.21 | 1.22 | -0.01 |
| Jul | 1.30 | 1.46 | -0.16 |
| Aug | 1.27 | 1.45 | -0.18 |
| Sep | 1.78 | 1.80 | -0.02 |
| Oct | 1.81 | 1.75 | 0.06 |
| Nov | 1.70 | 1.62 | 0.08 |
| Dec | 1.71 | 1.61 | 0.10 |
20.60 | 19.93 | 0.67 |