| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.71 | 0.02 |
| Feb | 0.78 | 0.77 | 0.01 |
| Mar | 1.48 | 1.47 | 0.01 |
| Apr | 2.55 | 2.58 | -0.03 |
| May | 3.54 | 3.60 | -0.06 |
| Jun | 4.37 | 4.40 | -0.03 |
| Jul | 4.17 | 3.95 | 0.22 |
| Aug | 3.80 | 3.78 | 0.02 |
| Sep | 2.87 | 2.90 | -0.03 |
| Oct | 2.63 | 2.67 | -0.04 |
| Nov | 1.33 | 1.35 | -0.02 |
| Dec | 0.90 | 0.93 | -0.03 |
29.15 | 29.11 | 0.04 |