| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.69 | -0.02 |
| Feb | 1.00 | 0.81 | 0.19 |
| Mar | 1.86 | 1.72 | 0.14 |
| Apr | 2.60 | 2.37 | 0.23 |
| May | 2.51 | 2.46 | 0.05 |
| Jun | 1.77 | 2.00 | -0.23 |
| Jul | 2.76 | 2.80 | -0.04 |
| Aug | 2.48 | 2.69 | -0.21 |
| Sep | 1.61 | 1.67 | -0.06 |
| Oct | 1.28 | 1.20 | 0.08 |
| Nov | 0.88 | 0.84 | 0.04 |
| Dec | 0.76 | 0.77 | -0.01 |
20.18 | 20.02 | 0.16 |