| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.77 | -0.10 |
| Feb | 0.85 | 0.83 | 0.02 |
| Mar | 1.50 | 1.59 | -0.09 |
| Apr | 2.98 | 2.77 | 0.21 |
| May | 4.01 | 4.15 | -0.14 |
| Jun | 4.78 | 5.07 | -0.29 |
| Jul | 3.88 | 3.94 | -0.06 |
| Aug | 3.73 | 3.93 | -0.20 |
| Sep | 3.17 | 3.11 | 0.06 |
| Oct | 2.24 | 2.40 | -0.16 |
| Nov | 1.42 | 1.38 | 0.04 |
| Dec | 0.99 | 1.04 | -0.05 |
30.22 | 30.98 | -0.76 |