WEATHER IN Ottawa

Weather data archive :: Ottawa (Ontario, Canada)

Time (UTC), date
13	8.11
14	8.11
15	8.11
16	8.11
17	8.11
18	8.11
19	8.11
20	8.11
21	8.11
22	8.11
23	8.11
00	9.11
01	9.11
02	9.11
03	9.11
04	9.11
05	9.11
06	9.11
07	9.11
08	9.11
09	9.11
10	9.11
11	9.11
12	9.11
13	9.11
14	9.11
15	9.11
16	9.11
17	9.11
18	9.11
19	9.11
20	9.11
21	9.11
22	9.11
23	9.11
00	10.11
01	10.11
02	10.11
03	10.11
04	10.11
05	10.11
06	10.11
07	10.11
08	10.11
09	10.11
10	10.11
11	10.11
12	10.11
13	10.11
14	10.11
15	10.11
16	10.11
17	10.11
18	10.11
19	10.11
20	10.11
21	10.11
22	10.11
23	10.11
00	11.11
01	11.11
02	11.11
03	11.11
04	11.11
05	11.11
06	11.11
07	11.11
08	11.11
09	11.11
10	11.11
11	11.11
12	11.11
13	11.11
14	11.11
15	11.11
16	11.11
17	11.11
18	11.11
19	11.11
20	11.11
21	11.11
22	11.11
23	11.11
00	12.11
01	12.11
02	12.11
03	12.11
04	12.11
05	12.11
06	12.11
07	12.11
08	12.11
09	12.11
10	12.11
11	12.11
12	12.11
13	12.11
14	12.11
15	12.11
16	12.11
17	12.11
18	12.11
19	12.11
20	12.11
21	12.11
22	12.11
23	12.11
00	13.11
01	13.11
02	13.11
03	13.11
04	13.11
05	13.11
06	13.11
07	13.11
08	13.11
09	13.11
10	13.11
11	13.11
12	13.11
13	13.11
14	13.11
15	13.11
16	13.11
17	13.11
18	13.11
19	13.11
20	13.11
21	13.11
22	13.11
23	13.11
00	14.11
01	14.11
02	14.11
03	14.11
04	14.11
05	14.11
06	14.11
07	14.11
08	14.11
09	14.11
10	14.11
11	14.11
12	14.11
13	14.11
14	14.11
15	14.11
16	14.11
17	14.11
18	14.11
19	14.11
20	14.11
21	14.11
22	14.11
23	14.11
00	15.11
01	15.11
02	15.11
03	15.11
04	15.11
05	15.11
06	15.11
07	15.11
08	15.11
09	15.11
10	15.11
11	15.11
12	15.11
13	15.11

Wind (dir.,m/s)		Visibility	Phenomena	Clouds	T (C)	Td (C)	f (%)	Te (C)	Ts (C)	Comfort	P (hPa)	Po hPa)	Tmin (C)	Tmax (C)	R (mm)	R24 (mm)	S (sm)
SW	8	24 km		7 scores	+8.5	+5.1	79	+4	+4	warm	1009.0	995.1
W	7	24 km		7 scores	+8.8	+5.0	77	+5	+5	warm	1009.0	995.1
W	6	24 km		8/8 1500 m	+8.9	+5.3	78	+5	+5	warm	1009.0	995.1
SW	7	24 km		7 scores	+10.9	+4.1	63	+8	+8	warm	1009.0	995.2
W	10	24 km		7 scores	+10.7	+1.5	53	+7	+7	warm	1009.0	995.1
W	13	24 km	distant precipitation	5/5 1000 m [Sc]	+11.7	+0.2	45	+8	+8	warm	1009.0	995.2	+6.2	+11.7
NW	6	24 km		5 scores	+5.9	+3.1	82	+1	+2	seasonable	1011.0	996.9
NW	6	24 km		5 scores	+8.2	+1.6	63	+4	+5	warm	1012.0	998.0
NW	7	24 km		9/9 1000 m	+7.8	-1.2	53	+4	+4	seasonable	1013.0	998.9	+4.4	+12.2
NW	8	24 km		7 scores	+6.9	-2.8	50	+2	+2	warm	1015.0	1000.9
NW	12	24 km		5 scores	+6.2	-4.8	45	0	0	warm	1017.0	1002.8
NW	12	24 km	{rain showers}	3/3 1000 m [Sc]	+5.6	-4.5	48	-0	-0	seasonable	1018.0	1003.8	+4.4	+12.2	0.0	0.0
NW	8	24 km		2 scores	+4.0	-3.3	59	-2	-2	seasonable	1019.0	1004.7
NW	9	24 km		2 scores	+3.5	-2.7	64	-3	-3	warm	1020.0	1005.6
NW	6	24 km		4/4 1000 m	+3.1	-3.0	64	-2	-2	seasonable	1021.0	1006.6
NW	8	24 km		5 scores	+2.6	-3.5	64	-4	-4	seasonable	1022.0	1007.5
NW	7	24 km		2 scores	+2.3	-4.0	63	-4	-4	warm	1023.0	1008.5
NW	5	24 km		1/0 [Ac trans]	+2.3	-4.0	63	-3	-3	seasonable	1023.0	1008.5	+2.0	+12.2		0.0
NW	6	24 km		clear	+1.5	-4.4	65	-4	-4	seasonable	1024.0	1009.5
NW	5	24 km		clear	+1.2	-4.4	66	-4	-4	warm	1025.0	1010.4
NW	5	24 km		clear	+1.2	-4.2	67	-4	-4	seasonable	1026.0	1011.4
NW	6	24 km		clear	+0.9	-3.6	72	-5	-5	seasonable	1027.0	1012.4
NW	5	24 km		2 scores	-0.1	-4.0	75	-6	-6	warm	1028.0	1013.3
W	2	24 km		clear	-0.2	-4.1	75	-4	-4	seasonable	1029.0	1014.3	-1.2	+12.2		0.0
NW	3	24 km		2 scores	+0.8	-3.1	75	-4	-3	seasonable	1029.0	1014.4
NW	3	24 km		2 scores	+2.9	-3.2	64	-1	0	warm	1030.0	1015.5
NW	4	24 km		clear	+3.7	-4.0	57	-0	+1	seasonable	1030.0	1015.5
N	3	24 km		2 scores	+4.6	-4.2	53	+2	+4	warm	1030.0	1015.5
NW	4	24 km		2 scores	+5.3	-3.5	53	+2	+4	warm	1030.0	1015.6
NW	3	24 km		clear	+5.7	-4.2	49	+3	+6	seasonable	1029.0	1014.6	-2.0	+6.1		0.0
NW	4	24 km		2 scores	+6.3	-5.1	44	+3	+5	warm	1029.0	1014.6
W	3	24 km		2 scores	+6.2	-5.4	43	+4	+5	warm	1029.0	1014.6
W	3	24 km		clear	+5.4	-4.7	48	+3	+3	seasonable	1029.0	1014.6	-2.0	+6.6
W	2	24 km		clear	+2.9	-4.8	57	0	0	seasonable	1029.0	1014.5
W	1	24 km		clear	+3.2	-5.0	55	+2	+2	warm	1029.0	1014.5
S	1	24 km		clear	+1.1	-5.2	63	-0	-0	seasonable	1028.0	1013.4	-2.0	+6.6
S	2	24 km		clear	-0.4	-6.0	66	-4	-4	seasonable	1028.0	1013.3
S	3	24 km		clear	+1.5	-5.4	60	-2	-2	warm	1028.0	1013.4
S	3	24 km		1/0 2000 m	+0.7	-4.7	67	-3	-3	seasonable	1027.0	1012.4
S	3	24 km		2 scores	-0.1	-3.6	77	-5	-5	seasonable	1027.0	1012.3
S	3	24 km		5 scores	-0.1	-3.0	81	-5	-5	seasonable	1026.0	1011.4
S	3	24 km		4/0 [Ci sp]	0.0	-2.1	86	-5	-5	cool	1027.0	1012.3	-2.0	+6.6
S	2	24 km		2 scores	-0.4	-1.8	90	-4	-4	seasonable	1026.0	1011.3
S	2	24 km		7 scores	-0.6	-1.4	94	-4	-4	warm	1026.0	1011.3
S	3	24 km		5/0	-1.0	-1.8	94	-6	-6	cool	1025.0	1010.3
S	3	24 km		5 scores	-0.6	-1.6	93	-6	-6	seasonable	1024.0	1009.4
SE	3	24 km		2 scores	-2.2	-3.2	93	-7	-7	seasonable	1023.0	1008.3
SE	2	24 km		3/0 [Ac As]	-2.5	-3.9	90	-7	-7	cool	1023.0	1008.3	-2.6	+6.6
NE	3	24 km		5 scores	-1.3	-2.0	95	-6	-6	seasonable	1022.0	1007.3
NE	2	24 km		5 scores	+1.9	-1.0	81	-1	-1	warm	1021.0	1006.5
E	2	24 km		9/0	+2.8	-1.6	73	0	+1	seasonable	1020.0	1005.6
E	3	24 km		7 scores	+3.6	-1.0	72	0	+1	seasonable	1019.0	1004.6
NE	3	24 km		10 scores	+3.9	-1.1	70	0	0	warm	1018.0	1003.7
NE	4	24 km		10/0 [Ac As]	+3.9	-0.9	71	-0	-0	cool	1017.0	1002.7	-2.7	+3.9
NE	2	24 km		7 scores	+4.6	-0.4	70	+2	+3	seasonable	1017.0	1002.7
E	2	24 km		10 scores	+4.5	-0.3	71	+2	+2	warm	1015.0	1000.8
E	5	24 km		10/10 1500 m	+4.7	+0.1	72	0	0	seasonable	1013.0	998.8	-2.7	+4.8
SE	4	24 km	rain	10 scores	+3.8	+2.2	89	-1	-1	seasonable	1012.0	997.8
E	3	24 km	rain	10 scores	+4.4	+2.7	89	+1	+1	warm	1012.0	997.8
SE	1	24 km	slight rain	10/10 1000 m [Sc]	+4.5	+3.0	90	+3	+3	seasonable	1011.0	996.8	-2.7	+4.8	0.3	0.3
E	3	8000 m	rain	10 scores	+4.1	+4.1	100	0	0	seasonable	1010.0	995.8
E	3	5000 m	rain	10 scores	+3.9	+3.9	100	-0	-0	warm	1008.0	993.8
E	4	3200 m		10/10 50 m	+4.0	+4.0	100	-1	-1	seasonable	1006.5	992.4
E	4	2000 m	rain	10 scores	+4.4	+4.4	100	-0	-0	seasonable	1005.0	990.9
SE	4	3000 m		8 scores	+5.1	+5.1	100	+1	+1	warm	1003.0	989.0
SE	3	8000 m	slight rain {drizzle}	10/10 50 m [Frnb]	+6.0	+6.0	100	+2	+2	seasonable	1002.0	988.1	-2.7	+6.0	3	3.4
E	2	5000 m	rain	10 scores	+6.3	+6.3	100	+4	+4	warm	1001.0	987.1
S	2	5000 m	heavy rain	10 scores	+7.3	+7.3	100	+5	+5	warm	1000.0	986.1
S	2	6000 m		10/10 50 m	+8.2	+8.2	100	+6	+6	warm	998.0	984.2
SW	3	6000 m	rain	10 scores	+8.7	+8.7	100	+6	+6	warm	999.0	985.2
SW	2	10 km	mist	10 scores	+8.8	+8.8	100	+7	+7	warm	998.0	984.2
SW	5	24 km	{rain}	9/9 300 m [St]	+9.6	+9.6	100	+6	+6	warm	998.0	984.3	+3.8	+6.0	7	10.0
SW	6	24 km		5 scores	+10.1	+10.1	100	+6	+6	warm	999.0	985.3
SW	7	24 km		7 scores	+10.9	+10.1	95	+7	+7	warm	999.0	985.3
S	7	24 km		5/5 300 m	+10.9	+9.5	91	+7	+8	warm	999.0	985.3
SW	9	24 km		7 scores	+11.7	+9.3	85	+8	+8	warm	1000.0	986.3
SW	6	24 km		7 scores	+11.6	+9.3	86	+9	+9	warm	999.0	985.4
SW	8	24 km		10/8 600 m [Sc]	+12.1	+8.8	80	+9	+9	warm	999.0	985.4	+3.8	+12.2		10.0
SW	7	24 km		7 scores	+11.8	+9.0	83	+9	+9	warm	999.0	985.4
S	5	16 km	rain	10 scores	+10.4	+10.4	100	+7	+7	warm	999.0	985.3
SW	5	24 km		10/10 300 m	+10.4	+10.1	98	+7	+7	warm	999.0	985.3
SW	6	24 km		7 scores	+10.0	+9.7	98	+6	+6	warm	999.0	985.3
SW	6	24 km	rain	10 scores	+9.8	+9.2	96	+6	+6	warm	999.0	985.3
SW	6	12 km	{rain}	9/9 300 m [Sc]	+9.4	+8.6	95	+6	+6	warm	998.0	984.3	+6.1	+12.2	0.5	10.2
W	7	13 km		7 scores	+9.3	+8.8	97	+5	+5	warm	999.0	985.2
N	8	16 km		7 scores	+7.2	+6.5	95	+2	+2	warm	1001.0	987.1
N	8	24 km		9/9 300 m	+5.5	+5.2	98	-0	-0	seasonable	1003.0	989.0
NW	9	24 km		10 scores	+5.1	+3.3	88	-1	-1	seasonable	1005.0	990.9
NW	10	13 km	rain	5 scores	+4.2	+2.6	89	-3	-3	warm	1007.0	992.9
NW	9	24 km	{rain showers}	10/10 300 m [Sc]	+3.4	+1.4	87	-3	-3	seasonable	1009.0	994.8	+3.4	+12.2	0.4	7.5
NW	9	24 km		10 scores	+2.8	+0.9	87	-4	-4	seasonable	1010.0	995.7
NW	10	24 km		7 scores	+2.2	-0.2	84	-5	-5	warm	1013.0	998.7
NW	6	24 km		9/9 600 m	+2.3	-1.1	78	-4	-4	seasonable	1015.0	1000.6
NW	9	24 km		10 scores	+2.1	-1.5	77	-5	-5	seasonable	1017.0	1002.6
NW	8	24 km		5 scores	+1.1	-2.5	77	-6	-6	warm	1019.0	1004.5
NW	10	24 km		clear	+0.7	-3.6	73	-7	-7	cool	1020.0	1005.5	+0.7	+12.2		0.9
N	9	24 km		2 scores	+1.3	-3.6	70	-6	-6	seasonable	1023.0	1008.5
N	8	24 km		2 scores	+2.4	-4.1	62	-4	-4	warm	1024.0	1009.5
N	8	24 km		clear	+3.7	-4.3	56	-2	-2	seasonable	1025.0	1010.6
NW	9	24 km		2 scores	+4.0	-5.2	51	-2	-2	seasonable	1026.0	1011.6
N	8	24 km		2 scores	+4.4	-5.4	49	-1	-0	warm	1026.0	1011.6
NW	7	24 km		4/4 1000 m [Sc]	+4.0	-5.5	50	-1	-1	cool	1027.0	1012.5	+0.5	+5.0		0.9
NW	8	24 km		5 scores	+4.7	-5.4	48	-1	-0	seasonable	1027.0	1012.6
N	6	24 km		5 scores	+4.4	-6.2	46	-0	0	warm	1028.0	1013.6
N	6	24 km		9/9 1000 m	+3.5	-5.9	50	-1	-1	cool	1029.0	1014.5
NW	6	24 km		7 scores	+2.7	-5.7	54	-3	-3	seasonable	1030.0	1015.4
NW	7	24 km		7 scores	+2.2	-5.9	55	-4	-4	seasonable	1031.0	1016.4
N	7	24 km		9/9 1000 m [Sc]	+1.3	-5.8	59	-5	-5	cold	1031.0	1016.3	+0.5	+5.6		0.4
N	6	24 km		2 scores	+0.5	-5.9	62	-6	-6	seasonable	1032.0	1017.3
N	4	24 km		2 scores	-0.1	-6.3	63	-5	-5	seasonable	1032.0	1017.3
N	3	24 km		clear	-0.6	-6.8	63	-5	-5	cool	1033.0	1018.2
N	3	24 km		2 scores	-1.3	-7.0	65	-6	-6	seasonable	1033.0	1018.2
N	3	24 km		clear	-1.5	-6.4	69	-6	-6	seasonable	1034.0	1019.2
NW	2	24 km		clear	-3.2	-6.2	80	-7	-7	cold	1034.0	1019.1	-3.4	+5.6
N	3	24 km		clear	-2.1	-5.8	76	-7	-7	seasonable	1035.0	1020.1
N	3	24 km		clear	-2.5	-5.6	79	-8	-8	seasonable	1035.0	1020.1
N	3	24 km		clear	-3.4	-6.2	81	-9	-9	cold	1035.0	1020.0
N	3	24 km		clear	-3.5	-6.1	82	-9	-9	seasonable	1036.0	1021.0
NE	3	24 km		clear	-4.7	-6.5	87	-10	-10	seasonable	1036.0	1020.9
NE	4	24 km		clear	-5.2	-6.7	89	-12	-12	very cold	1037.0	1021.9	-5.2	+5.6
NE	3	24 km		clear	-2.6	-4.5	87	-8	-8	seasonable	1037.0	1022.1
NE	3	24 km		clear	-0.6	-3.5	81	-5	-4	warm	1038.0	1023.2
E	4	24 km		clear	+0.8	-4.0	70	-4	-3	cool	1038.0	1023.2
SE	3	24 km		clear	+1.6	-4.7	63	-2	+1	seasonable	1037.0	1022.3
E	3	24 km		clear	+2.6	-4.8	58	-1	+2	warm	1036.0	1021.3
E	3	24 km		clear	+3.2	-5.2	54	-0	+3	cool	1036.0	1021.4	-5.2	+3.6
E	2	24 km		2 scores	+3.5	-6.2	49	+1	+3	seasonable	1035.0	1020.4
NE	3	24 km		2 scores	+3.6	-6.1	49	0	+1	warm	1035.0	1020.4
E	4	24 km		clear	+2.1	-6.2	54	-2	-2	cool	1035.0	1020.3
E	3	24 km		clear	-0.4	-7.2	60	-5	-5	cool	1035.0	1020.2
E	3	24 km		clear	-1.3	-6.6	67	-6	-6	seasonable	1034.0	1019.2
E	2	24 km		clear	-2.1	-6.1	74	-6	-6	cold	1034.0	1019.1	-5.2	+3.9
E	4	24 km		clear	-2.2	-6.0	75	-8	-8	cool	1034.0	1019.1
E	5	24 km		clear	-2.3	-6.3	74	-9	-9	seasonable	1033.0	1018.1
E	3	24 km		clear	-3.0	-6.6	76	-8	-8	cold	1033.0	1018.1
E	3	24 km		2 scores	-3.7	-6.6	80	-9	-9	cool	1033.0	1018.0
E	4	24 km		5 scores	-3.8	-6.4	82	-10	-10	seasonable	1032.0	1017.1
E	5	24 km		4/0	-3.7	-6.3	82	-11	-11	very cold	1031.0	1016.1	-5.2	+3.9
E	4	24 km		2 scores	-3.9	-6.7	81	-10	-10	cool	1030.0	1015.1
E	2	24 km		5 scores	-4.3	-7.2	80	-8	-8	seasonable	1030.0	1015.1
E	4	24 km		6/0	-4.2	-7.8	76	-10	-10	cold	1030.0	1015.1
NE	4	24 km		7 scores	-5.2	-8.1	80	-12	-12	cool	1029.0	1014.0
E	5	24 km		7 scores	-4.0	-7.4	77	-11	-11	seasonable	1029.0	1014.1
E	4	24 km		4/0 [Ci fib]	-4.2	-7.5	78	-10	-10	cold	1029.0	1014.1	-6.0	+3.9
E	4	24 km		5 scores	-3.4	-6.8	77	-9	-9	seasonable	1029.0	1014.1
E	4	24 km		7 scores	-2.2	-6.6	72	-8	-8	seasonable	1028.0	1013.2
E	6	24 km		9/0 2000 m	-0.4	-6.6	63	-7	-6	cold	1027.0	1012.3
E	5	24 km		7 scores	+0.8	-6.3	59	-5	-4	seasonable	1027.0	1012.4
E	3	24 km		7 scores	+1.8	-6.8	53	-2	-1	warm	1026.0	1011.4
E	4	24 km		9/1 1500 m [Sc Ac As]	+3.4	-6.3	49	-1	0	cool	1024.0	1009.6	-6.0	+3.5
E	4	24 km		7 scores	+3.2	-6.0	51	-1	-0	seasonable	1023.0	1008.6
E	5	24 km		7 scores	+2.6	-6.8	50	-2	-2	seasonable	1023.0	1008.5
E	4	24 km		9/9 1500 m	+2.0	-6.8	52	-2	-2	cool	1022.0	1007.5
E	4	24 km		7 scores	+1.0	-7.0	55	-4	-4	seasonable	1023.0	1008.4
E	7	24 km		7 scores	+1.0	-7.5	53	-5	-5	seasonable	1022.0	1007.5
E	6	24 km		9/0 [Ci fib]	+0.5	-7.7	54	-5	-5	cool	1021.0	1006.4	-6.0	+3.5
E	4	24 km		7 scores	+0.1	-7.2	58	-5	-5	seasonable	1021.0	1006.4
E	3	24 km		7 scores	-0.1	-6.9	60	-4	-4	seasonable	1021.0	1006.4
E	4	24 km		9/0	-0.2	-7.0	60	-5	-5	cool	1021.0	1006.4
NE	3	24 km		7 scores	-0.6	-7.4	60	-5	-5	seasonable	1021.0	1006.4
NE	5	24 km		7 scores	-0.6	-7.2	61	-6	-6	seasonable	1020.0	1005.4
NE	6	24 km		8/0 [Ci fib]	-0.6	-7.8	58	-7	-7	cool	1020.0	1005.4	-6.0	+3.5
NE	6	24 km		5 scores	-0.5	-8.9	53	-7	-7	seasonable	1020.0	1005.4
E	4	24 km		5 scores	-0.7	-9.3	52	-6	-6	seasonable	1019.0	1004.4
E	4	24 km		9/0	-0.5	-9.1	52	-5	-5	seasonable	1019.0	1004.4
E	4	24 km		7 scores	-0.4	-8.3	55	-5	-5	seasonable	1019.0	1004.4
NE	4	24 km		7 scores	-1.0	-8.0	59	-6	-6	warm	1019.0	1004.4
NE	2	24 km		9/0 [Ci fib]	-1.6	-8.1	61	-5	-5	seasonable	1019.0	1004.4	-1.9	+3.5
N	2	24 km		5 scores	+0.4	-6.9	58	-3	-3	seasonable	1019.0	1004.5

Weather station location Ottawa (Ontario, Canada): latitude 45.32 longitude -75.66 height above sea level 114 m.

The archive by default shows the weather in Ottawa for the last week. You can obtain the archived data for the whole month and for the previous months, starting from January 2011, by selecting the desired date range from the drop-down list and clicking the "Find!" button.

Attention! The time in the tables is UTC. To get the local time, you need to add shift, which is equal to -5 h.

See also the weather archive in nearby cities and at nearby weather stations:

Weather in Ottawa Recreation (Ontario, Canada)(8 km)
Weather in Kemptville (Ontario, Canada)(36 km)
Weather in Moose Creek Wells (Ontario, Canada)(55 km)
Weather in High Falls (Quebec, Canada)(57 km)
Weather in Cape Dorset (Northwest Territories, Canada)(67 km)
Weather in Mackenzie (British Columbia, Canada)(85 km)
Weather in Grenadier Island (Ontario, Canada)(101 km)
Weather in Inukjuak (Quebec, Canada)(106 km)
Weather in Maniwaki (Quebec, Canada)(109 km)
Weather in St Anicet (Quebec, Canada)(110 km)

Explanations to columns:

Wind - indicated wind speed in m/s - average for 10 minutes, gusts within and between terms (in curly brackets) and direction from which the wind blows: N - North, NE - North-East, E - East, SE - South-East , S - South, SW - South-West, W - West, NW - North-West.
Visibility - horizontal range of visibility in meters or kilometers. When visibility is from 1 to 10 km in the absence of precipitation, haze is usually observed, and when visibility is reduced to 1 km or less, fog is observed. In dry weather, visibility may be reduced by smoke, dust, or haze.
Phenomena - atmospheric phenomena observed during the period or in the last hour before the period are indicated; curly brackets indicate phenomena observed between periods (1-3 hours before the period); square brackets indicate hail or icy deposits with their diameter in mm.
Clouds - are through slash total and lower clouds in points, and the height of the lower border of the cloud in meters; square brackets contain cloud forms: Ci - Cirrus, Cs - Cirrostratus, Cc - Cirrocumulus, Ac - Altocumulus, As - Altostratus, Sc - Stratocumulus, Ns - Nimbostratus, Cu - Cumulus, Cb - Cumulonimbus. For more information about cloud classification, see the cloud Atlas (PDF).
T - Air temperature - temperature measured at a height of 2 m above the ground.
Td - Dew point temperature - the temperature at which the water vapor contained in the air reaches saturation.
f - Relative humidity measured at a height of 2 m above the ground.
Te - Effective temperature is the temperature felt by a seasonally dressed person in the shade. Characteristic of stuffy weather. The calculation takes into account the effects of air humidity and wind speed on a person's heat sensation.
Tes - Effective sun temperature - The temperature a person feels, corrected for solar heating. Characteristic of sweltering weather. Depends on the height of the sun above the horizon, cloud cover, and wind speed. At night, overcast, and with winds of 12 m/s or more, the correction is zero.
P - Atmospheric pressure - atmospheric pressure reduced to sea level.
Po - Atmospheric pressure - atmospheric pressure measured at the station level.
Tmin - Minimum temperature - minimum air temperature at a height of 2 m above the ground.
Tmax - Maximum temperature - maximum air temperature at a height of 2 m above the ground.
R - Precipitation - The amount of precipitation over a period of time, mm. When you hover the mouse cursor over a number - the period of time during which the specified amount of precipitation fell.
R24 - 24hour precipitation - The amount of precipitation in 24 hours, mm.
S - Snow cover - The height of the snow cover. When you hover the mouse over the number - the state of the snow cover and the degree of coverage in points.