| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.66 | -0.01 |
| Feb | 0.65 | 0.69 | -0.04 |
| Mar | 1.16 | 1.23 | -0.07 |
| Apr | 2.06 | 2.19 | -0.13 |
| May | 3.23 | 3.37 | -0.14 |
| Jun | 4.24 | 4.20 | 0.04 |
| Jul | 4.20 | 4.11 | 0.09 |
| Aug | 3.27 | 3.14 | 0.13 |
| Sep | 2.91 | 2.95 | -0.04 |
| Oct | 2.67 | 2.74 | -0.07 |
| Nov | 1.15 | 1.14 | 0.01 |
| Dec | 0.86 | 0.93 | -0.07 |
27.05 | 27.35 | -0.30 |