| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.27 | 4.21 | 0.06 |
| Feb | 4.19 | 4.20 | -0.01 |
| Mar | 4.58 | 4.60 | -0.02 |
| Apr | 3.60 | 3.59 | 0.01 |
| May | 2.87 | 2.92 | -0.05 |
| Jun | 4.03 | 4.29 | -0.26 |
| Jul | 4.35 | 4.41 | -0.06 |
| Aug | 4.45 | 4.53 | -0.08 |
| Sep | 3.78 | 3.88 | -0.10 |
| Oct | 2.79 | 2.80 | -0.01 |
| Nov | 3.21 | 3.31 | -0.10 |
| Dec | 4.44 | 4.44 | 0.00 |
46.56 | 47.18 | -0.62 |