| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.40 | 1.39 | 0.01 |
| Feb | 1.64 | 1.72 | -0.08 |
| Mar | 2.45 | 2.43 | 0.02 |
| Apr | 3.60 | 3.50 | 0.10 |
| May | 4.95 | 4.87 | 0.08 |
| Jun | 5.06 | 4.80 | 0.26 |
| Jul | 3.93 | 3.68 | 0.25 |
| Aug | 3.88 | 3.87 | 0.01 |
| Sep | 3.50 | 3.35 | 0.15 |
| Oct | 2.87 | 2.73 | 0.14 |
| Nov | 2.23 | 2.16 | 0.07 |
| Dec | 1.78 | 1.80 | -0.02 |
37.29 | 36.30 | 0.99 |