| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.25 | 1.23 | 0.02 |
| Feb | 1.70 | 1.76 | -0.06 |
| Mar | 2.63 | 2.75 | -0.12 |
| Apr | 3.80 | 3.77 | 0.03 |
| May | 5.35 | 5.35 | 0.00 |
| Jun | 5.15 | 5.16 | -0.01 |
| Jul | 4.54 | 4.53 | 0.01 |
| Aug | 4.26 | 4.40 | -0.14 |
| Sep | 4.13 | 4.29 | -0.16 |
| Oct | 3.12 | 3.21 | -0.09 |
| Nov | 2.26 | 2.25 | 0.01 |
| Dec | 1.66 | 1.63 | 0.03 |
39.85 | 40.33 | -0.48 |