| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.08 | 0.51 |
| Feb | 3.92 | 3.76 | 0.16 |
| Mar | 2.63 | 2.60 | 0.03 |
| Apr | 0.88 | 0.87 | 0.01 |
| May | 0.37 | 0.34 | 0.03 |
| Jun | 0.07 | 0.09 | -0.02 |
| Jul | 0.03 | 0.07 | -0.04 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.13 | 0.12 | 0.01 |
| Oct | 0.65 | 0.58 | 0.07 |
| Nov | 0.99 | 0.79 | 0.20 |
| Dec | 2.50 | 2.34 | 0.16 |
15.78 | 14.67 | 1.11 |