| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 9.65 | 6.49 | 3.16 |
| Feb | 8.83 | 5.20 | 3.63 |
| Mar | 8.00 | 4.65 | 3.35 |
| Apr | 4.42 | 2.43 | 1.99 |
| May | 2.32 | 1.58 | 0.74 |
| Jun | 1.01 | 0.80 | 0.21 |
| Jul | 0.17 | 0.18 | -0.01 |
| Aug | 0.22 | 0.15 | 0.07 |
| Sep | 0.53 | 0.33 | 0.20 |
| Oct | 3.08 | 1.83 | 1.25 |
| Nov | 6.45 | 4.04 | 2.41 |
| Dec | 11.08 | 7.41 | 3.67 |
55.76 | 35.09 | 20.67 |