| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.20 | 4.63 | -0.43 |
| Feb | 4.28 | 4.40 | -0.12 |
| Mar | 3.30 | 3.64 | -0.34 |
| Apr | 1.56 | 1.83 | -0.27 |
| May | 0.73 | 0.86 | -0.13 |
| Jun | 0.15 | 0.23 | -0.08 |
| Jul | 0.01 | 0.02 | -0.01 |
| Aug | 0.03 | 0.05 | -0.02 |
| Sep | 0.10 | 0.10 | 0.00 |
| Oct | 1.03 | 1.13 | -0.10 |
| Nov | 2.32 | 2.48 | -0.16 |
| Dec | 4.47 | 5.09 | -0.62 |
22.18 | 24.46 | -2.28 |