Weather archive in Ontario for the last week, weather in Ontario for december 2025 year

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Ontario International Airport

WEATHER IN Ontario

Weather forecast in Ontario
Climate monitor in Ontario

Time and date
08:53	07.12
09:53	07.12
10:53	07.12
11:53	07.12
12:53	07.12
13:53	07.12
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00:53	08.12
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07:53	09.12

Wind (dir.,mph)		Visibility	Phenomena	Clouds	Т (F)	Тd (F)	f (%)	Тe (F)	Тes (F)	Comfort	P (in)	Po (in)	Тmin (F)	Tmax (F)	R (in)	R24 (in)	S (in)
calm	0	10 miles		2/0 25000 ft [Ci]	58	40	51	57	59		30.14	29.15
calm	0	10 miles		2/0 25000 ft [Ci]	64	40	41	64	70		30.15	29.16	46	64
calm	0	10 miles		clear	68	39	35	68	81		30.14	29.15
calm	0	10 miles		clear	73	37	27	72	88	comfort	30.11	29.13
calm	0	10 miles		2/0 25000 ft [Ci]	74	37	26	73	88	comfort	30.09	29.10
W	3 {2}	10 miles		clear	76	38	25	75	86	comfort	30.08	29.10
W	5 {2}	10 miles		2/0 25000 ft [Ci]	76	37	24	75	81	comfort	30.08	29.09
W	5 {2}	10 miles		2/0 25000 ft [Ci]	76	35	23	73	77	comfort	30.08	29.09	64	77
SW	6 {3}	10 miles		2/0 25000 ft [Ci]	70	44	39	72	72	comfort	30.10	29.10
W	5 {2}	10 miles		2/0 25000 ft [Ci]	67	43	42	70	70	comfort	30.12	29.12
		10 miles		2/0 25000 ft [Ci]	64	44	48	64	64		30.13	29.13
		10 miles		2/0 25000 ft [Ci]	61	45	56	61	61		30.14	29.14
calm	0	10 miles		clear	61	43	51	61	61		30.15	29.15
calm	0	10 miles		clear	58	43	57	57	57		30.15	29.16	58	76
calm	0	10 miles		clear	57	42	57	57	57		30.15	29.16
calm	0	10 miles		clear	55	42	62	55	55		30.14	29.15
calm	0	10 miles		clear	54	41	61	54	54		30.13	29.14
calm	0	10 miles		2/0 30000 ft [Ci]	53	41	63	52	52		30.13	29.14
NE	3 {2}	10 miles		clear	54	40	59	54	54		30.12	29.13
N	5 {2}	10 miles		clear	52	40	63	50	50		30.11	29.12	50	59
calm	0	10 miles		clear	53	40	61	52	52		30.11	29.13
calm	0	10 miles		clear	51	40	65	50	50		30.14	29.14
N	3 {2}	10 miles		clear	49	40	71	46	46		30.15	29.15
calm	0	10 miles		clear	55	44	66	54	54		30.15	29.16
NW	3 {2}	10 miles		clear	62	43	50	63	64		30.16	29.17
W	5 {2}	10 miles		clear	66	40	38	68	72		30.16	29.17	47	66
calm	0	10 miles		clear	71	39	31	72	82	comfort	30.13	29.15
W	6 {3}	10 miles		clear	77	40	26	75	86	comfort	30.11	29.12
NW	6 {3}	10 miles		clear	80	38	22	77	88	comfort	30.08	29.10
NW	9 {5}	10 miles		clear	81	38	21	79	84	hot	30.05	29.07
W	6 {3}	10 miles		clear	80	41	25	79	84	hot	30.04	29.06
W	7 {4}	10 miles		clear	77	40	26	75	79	comfort	30.05	29.07	66	83
SW	6 {3}	10 miles		clear	73	40	30	73	73	comfort	30.06	29.07
W	5 {2}	10 miles		clear	73	35	25	72	72	comfort	30.09	29.10
		10 miles		clear	65	40	40	64	64		30.09	29.09
		10 miles		clear	67	39	36	68	68		30.10	29.11
W	5 {2}	10 miles		clear	62	39	42	63	63		30.11	29.12
		10 miles		clear	62	38	41	63	63		30.10	29.11	56	77
N	6 {3}	10 miles		clear	59	38	45	59	59		30.10	29.11
calm	0	10 miles		clear	55	38	52	55	55		30.09	29.11
N	3 {2}	10 miles		clear	56	38	51	55	55		30.08	29.10
N	3 {2}	10 miles		clear	53	37	54	52	52		30.07	29.09
N	5 {2}	10 miles		clear	57	36	45	57	57		30.05	29.07
calm	0	10 miles		clear	56	34	43	55	55		30.04	29.06	49	63
calm	0	10 miles		clear	52	36	54	52	52		30.05	29.06
NE	5 {2}	10 miles		clear	55	35	47	54	54		30.06	29.08
calm	0	10 miles		clear	53	35	50	54	54		30.09	29.09
NE	6 {3}	10 miles		clear	59	36	42	59	59		30.09	29.10

Weather station location Ontario International Airport: latitude 34.0533 longitude -117.5758 Height above sea level 287 m.

The archive shows weather in Ontario for the last 1-2 days. The actual weather information in the database is updated hourly! The entire month and previous months archive data can be obtained by selecting the date range of interest from the drop-down list and pressing the "Enter!".

Attention! The METAR weather archive in database for stations not included in the climate monitor is stored for no more than 60 days. It makes no sense to try to choose an earlier date.

Attention! The time in the tables is local time (not including daylight saving time). To obtain Universal Time, subtract the correction, which is equal to -8 h.

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

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Column explanations:

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 of observations.
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 over the number, the time period for which the specified amount of precipitation has fallen.
R24 - Precipitation 24h - 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.