| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.46 | 0.02 |
| Feb | 0.67 | 0.64 | 0.03 |
| Mar | 0.95 | 0.90 | 0.05 |
| Apr | 2.23 | 2.22 | 0.01 |
| May | 3.57 | 3.45 | 0.12 |
| Jun | 3.69 | 3.68 | 0.01 |
| Jul | 3.05 | 2.97 | 0.08 |
| Aug | 2.43 | 2.29 | 0.14 |
| Sep | 2.06 | 2.04 | 0.02 |
| Oct | 1.86 | 1.89 | -0.03 |
| Nov | 0.62 | 0.60 | 0.02 |
| Dec | 0.54 | 0.54 | 0.00 |
22.15 | 21.68 | 0.47 |