| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.63 | -0.16 |
| Feb | 3.43 | 3.45 | -0.02 |
| Mar | 4.58 | 4.50 | 0.08 |
| Apr | 5.10 | 5.10 | 0.00 |
| May | 5.20 | 5.25 | -0.05 |
| Jun | 4.53 | 4.66 | -0.13 |
| Jul | 4.14 | 4.06 | 0.08 |
| Aug | 3.60 | 3.24 | 0.36 |
| Sep | 3.79 | 3.80 | -0.01 |
| Oct | 3.64 | 3.60 | 0.04 |
| Nov | 3.66 | 3.74 | -0.08 |
| Dec | 4.15 | 4.34 | -0.19 |
49.29 | 49.37 | -0.08 |