| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.83 | -0.11 |
| Feb | 0.77 | 0.88 | -0.11 |
| Mar | 1.53 | 1.53 | 0.00 |
| Apr | 2.93 | 2.95 | -0.02 |
| May | 4.15 | 4.33 | -0.18 |
| Jun | 4.61 | 4.60 | 0.01 |
| Jul | 4.07 | 4.10 | -0.03 |
| Aug | 4.23 | 4.29 | -0.06 |
| Sep | 3.37 | 3.28 | 0.09 |
| Oct | 2.64 | 2.62 | 0.02 |
| Nov | 1.50 | 1.54 | -0.04 |
| Dec | 1.04 | 1.20 | -0.16 |
31.56 | 32.15 | -0.59 |