| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.70 | 0.03 |
| Feb | 0.80 | 0.76 | 0.04 |
| Mar | 1.51 | 1.49 | 0.02 |
| Apr | 2.55 | 2.59 | -0.04 |
| May | 3.64 | 3.65 | -0.01 |
| Jun | 4.25 | 4.37 | -0.12 |
| Jul | 4.04 | 3.88 | 0.16 |
| Aug | 3.83 | 3.91 | -0.08 |
| Sep | 2.87 | 2.95 | -0.08 |
| Oct | 2.63 | 2.69 | -0.06 |
| Nov | 1.37 | 1.38 | -0.01 |
| Dec | 0.89 | 0.92 | -0.03 |
29.11 | 29.29 | -0.18 |