| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.34 | -0.01 |
| Feb | 0.55 | 0.56 | -0.01 |
| Mar | 0.98 | 1.03 | -0.05 |
| Apr | 2.22 | 2.28 | -0.06 |
| May | 3.38 | 3.35 | 0.03 |
| Jun | 3.40 | 3.61 | -0.21 |
| Jul | 3.22 | 3.22 | 0.00 |
| Aug | 2.61 | 2.80 | -0.19 |
| Sep | 1.63 | 1.67 | -0.04 |
| Oct | 1.58 | 1.67 | -0.09 |
| Nov | 0.75 | 0.69 | 0.06 |
| Dec | 0.50 | 0.51 | -0.01 |
21.15 | 21.73 | -0.58 |