| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.43 | 0.01 |
| Feb | 0.60 | 0.58 | 0.02 |
| Mar | 1.11 | 1.14 | -0.03 |
| Apr | 2.20 | 2.21 | -0.01 |
| May | 3.30 | 3.08 | 0.22 |
| Jun | 3.41 | 3.57 | -0.16 |
| Jul | 2.31 | 2.63 | -0.32 |
| Aug | 2.06 | 1.92 | 0.14 |
| Sep | 1.52 | 1.53 | -0.01 |
| Oct | 1.52 | 1.58 | -0.06 |
| Nov | 0.69 | 0.67 | 0.02 |
| Dec | 0.48 | 0.50 | -0.02 |
19.64 | 19.84 | -0.20 |