| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.40 | 0.07 |
| Feb | 0.61 | 0.57 | 0.04 |
| Mar | 1.20 | 1.14 | 0.06 |
| Apr | 2.25 | 2.22 | 0.03 |
| May | 3.21 | 3.40 | -0.19 |
| Jun | 2.91 | 3.10 | -0.19 |
| Jul | 2.38 | 2.53 | -0.15 |
| Aug | 1.74 | 1.67 | 0.07 |
| Sep | 1.58 | 1.57 | 0.01 |
| Oct | 1.54 | 1.51 | 0.03 |
| Nov | 0.61 | 0.57 | 0.04 |
| Dec | 0.60 | 0.50 | 0.10 |
19.10 | 19.18 | -0.08 |