StuffOnline (Environment)

The basic temperature (for hex row N-4) is 30.5°C, but this is affected by a number of factors: axial tilt, eccentricity, day and night, and the moderating effect of water found in Scarland. Summer in the northern hemisphere coincides with periastron (closest orbital point to Liecs), and summer in the southern hemisphere coincides with apastron (farthest orbital point from Liecs). The 'arctic circles' lie at about 12° from the poles, and thus cut through the middle of hex row N-10 and S-10.

Base Temperatures (General)
	Summer in Northern Hemisphere		Summer in Southern Hemisphere
Hex Row	Day (°C)	Night (°C)	Day (°C)	Night (°C)
N-11	23	-21	-1	-45
N-10	28	-16	4	-40
N-9	32	-12	8	-36
N-8	37	-7	13	-31
N-7	39	-5	20	-23
N-6	42	-2	28	-16
N-5	44	0	36	-8
N-4	47	3	44	0
N-3	51	7	48	4
N-2	56	12	53	9
N-1	60	16	57	13
S-1	60	16	57	13
S-2	56	12	53	9
S-3	51	7	48	4
S-4	47	3	44	0
S-5	39	-5	41	-3
S-6	31	-13	39	-5
S-7	23	-20	36	-8
S-8	16	-28	34	-10
S-9	11	-33	29	-15
S-10	7	-37	25	-19
S-11	2	-42	20	-24

Base Temperatures (Scarland)
	Summer in Northern Hemisphere		Summer in Southern Hemisphere
Hex Row	Day (°C)	Night (°C)	Day (°C)	Night (°C)
N-11	17	-15	-7	-39
N-10	22	-10	-2	-34
N-9	26	-6	2	-30
N-8	31	-1	7	-25
N-7	33	1	14	-17
N-6	36	4	22	-10
N-5	38	6	30	-2
N-4	41	9	38	6
N-3	45	13	42	10
N-2	50	18	47	15
N-1	54	22	51	19
S-1	54	22	51	19
S-2	50	18	47	15
S-3	45	13	42	10
S-4	41	9	38	6
S-5	33	1	35	3
S-6	25	-7	33	1
S-7	17	-14	30	-2
S-8	10	-22	28	-4
S-9	5	-27	23	-9
S-10	1	-31	19	-13
S-11	-4	-36	14	-18

Effects
50°C	Upper limit of human habitability
37°C	Physical strain on human body
30°C	Upper limit of human comfort
25°C	Upper limit of optimal temperature (room temperature)
18°C	Lower limit of optimal temperature (room temperature)
15°C	Base temperature for Terra
6°C	Minimum for crop growing season
0°C	Lower limit of human comfort
-5°C	Crop "killing frost" temperature on most worlds
-20°C	Lower limit of human habitability
-36°C	Hardy plants killed on most worlds
-78°C	Carbon dioxide solidifies to form dry ice

(based on Grand Survey © DGP)

As altitude increases atmospheric pressure (and thus oxygen pressure) decreases. It also gets colder. The equivalent altitude on Earth (based on oxygen pressure) is 3.5km higher (ie there is the same amount of oxygen at 0km altitude on Yori as there is on Earth at 3.5km). The temperature "lapse rate" is -4.59°C per km.

Altitude
Altitude (km)	Pressure (atm)	Oxygen Pressure (atm)	Temperature Change (°C)
-2.00	1.46	0.18	+9
-1.50	1.38	0.17	+7
-1.00	1.31	0.16	+5
-0.50	1.23	0.15	+2
0.00	1.17	0.14	0
0.50	1.10	0.13	-2
1.00	1.04	0.13	-5
1.50	0.99	0.12	-7
2.00	0.93	0.11	-9
2.50	0.88	0.11	-11
3.00	0.84	0.10	-14
3.50	0.79	0.09	-16
4.00	0.75	0.09	-18
4.50	0.71	0.08	-21
5.00	0.67	0.08	-23
5.50	0.63	0.08	-25
6.00	0.60	0.07	-28
6.50	0.57	0.07	-30
7.00	0.53	0.06	-32
7.50	0.51	0.06	-34
8.00	0.48	0.06	-37
8.50	0.45	0.05	-39
9.00	0.43	0.05	-41
9.50	0.40	0.05	-44
10.00	0.38	0.05	-46

A storm can mix air from cooler high altitude with air on the ground. During a storm reduce the local temperature by (Severity-1d6)°C ... minimum reduction 0°C.

Beaufort Scale
Severity	Name	Wind (kph)
0	Calm	1
1	Light air	1-5
2	Light breeze	6-11
3	Gentle breeze	12-19
4	Moderate breeze	20-28
5	Fresh breeze	29-38
6	Strong breeze	39-49
7	Moderate gale	50-61
8	Fresh gale	62-74
9	Strong gale	75-88
10	Whole gale	89-102
11	Storm	103-117
12+	Hurricane	117+