| DAY | TEMPERATURE | DEGREE DAYS | RAIN | WIND SPEED | WIND DIR | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | HIGH | LOW | HDD | CDD | AVG | MAX | DEG | DIR | ||
| MONTH | TEMPERATURE | DEGREE DAYS | RAIN | WIND | DATA | ||||
|---|---|---|---|---|---|---|---|---|---|
| MEAN | HIGH | LOW | HDD | CDD | TOTAL | AVG | MAX | DAYS | |
Degree days use base 15.5°C (the UK convention), computed from daily mean temperature, regardless of the unit system selected above. The Yearly tab's monthly HDD/CDD figures use the month's mean temperature × day count — a coarser approximation than summing each day's own HDD/CDD (which the Monthly tab does) — carried over as-is from the original report.