NWS Jacksonville » Climate Page » St. Simons Island Normals for April
| SSI | March Normals | April Normals | May Normals |
| March Records | April Records | May Records |
| St. Simons Island Normals for April | |||||||
| Day | High | Low | Avg | Pcpn | Year To Date | HDD | CDD |
| 01 | 72 | 55 | 63 | 0.11 | 10.68 | 03 | 02 |
| 02 | 72 | 55 | 64 | 0.10 | 10.78 | 03 | 02 |
| 03 | 72 | 55 | 64 | 0.10 | 10.88 | 03 | 02 |
| 04 | 73 | 56 | 64 | 0.09 | 10.97 | 03 | 02 |
| 05 | 73 | 56 | 64 | 0.10 | 11.07 | 03 | 02 |
| 06 | 73 | 56 | 64 | 0.09 | 11.16 | 03 | 02 |
| 07 | 73 | 56 | 65 | 0.10 | 11.26 | 03 | 02 |
| 08 | 73 | 56 | 65 | 0.09 | 11.35 | 03 | 02 |
| 09 | 74 | 57 | 65 | 0.10 | 11.45 | 03 | 03 |
| 10 | 74 | 57 | 65 | 0.09 | 11.54 | 02 | 03 |
| 11 | 74 | 57 | 65 | 0.09 | 11.63 | 02 | 03 |
| 12 | 74 | 57 | 66 | 0.09 | 11.72 | 02 | 03 |
| 13 | 74 | 57 | 66 | 0.09 | 11.81 | 02 | 03 |
| 14 | 75 | 58 | 66 | 0.09 | 11.90 | 02 | 03 |
| 15 | 75 | 58 | 66 | 0.08 | 11.98 | 02 | 03 |
| 16 | 75 | 58 | 67 | 0.08 | 12.06 | 02 | 03 |
| 17 | 75 | 58 | 67 | 0.08 | 12.14 | 02 | 03 |
| 18 | 75 | 59 | 67 | 0.08 | 12.22 | 02 | 04 |
| 19 | 76 | 59 | 67 | 0.08 | 12.30 | 01 | 04 |
| 20 | 76 | 59 | 68 | 0.07 | 12.37 | 01 | 04 |
| 21 | 76 | 59 | 68 | 0.08 | 12.45 | 01 | 04 |
| 22 | 76 | 60 | 68 | 0.08 | 12.53 | 01 | 04 |
| 23 | 77 | 60 | 68 | 0.07 | 12.60 | 01 | 04 |
| 24 | 77 | 60 | 69 | 0.07 | 12.67 | 01 | 05 |
| 25 | 77 | 60 | 69 | 0.07 | 12.74 | 01 | 05 |
| 26 | 77 | 61 | 69 | 0.06 | 12.80 | 01 | 05 |
| 27 | 78 | 61 | 69 | 0.07 | 12.87 | 01 | 05 |
| 28 | 78 | 61 | 70 | 0.06 | 12.93 | 01 | 05 |
| 29 | 78 | 62 | 70 | 0.07 | 13.00 | 01 | 05 |
| 30 | 78 | 62 | 70 | 0.06 | 13.06 | 01 | 06 |
| Month | 75.0 | 58.1 | 66.5 | 2.49 | 13.06 | 0056 | 0103 |
| Season | - | - | - | - | - | 0233 | 0134 |