Command Module Cabin Temperature History (°F)

Mission	Apollo 7	Apollo 8	Apollo 9	Apollo 10	Apollo 11	Apollo 12	Apollo 13	Apollo 14	Apollo 15	Apollo 16	Apollo 17
Launch	70	65	65	75	70	70	70	70	70	70	70
Average	70	72	70	73	63	67	64	74	69	70	69
High	79	81	72	80	73	80	71	77	81	80	81
Low	64	61	65	64	55	58	58 [sic*]	60	59	57	61
Reentry	65	61	67	58	55	60	75	59	59	57	6

Biomedical Results of Apollo, SP-368, p. 133. All temperatures were measured at the heat exchanger inlet. During the Apollo 13 mission, the LM environmental control system provided a habitable environment for about  83 hours (57:45 to 141:05 GET). Cabin temperature remained low due to low electrical power levels. This caused crew discomfort during much of this period, with cabin temperatures ranging between 49°F and 55 °F.

* Further examination of Biomedical Results of Apollo reveals that actual cabin temperatures dropped to a low of 43°F. It is likely that the figure in the original text refers to the low cabin temperature while the Command Module was powered up.

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