Av. high : Average high in ºF - Av.low : Average low in ºF - Av. precip. : Average precipitation in inch - Days precip. : Days with precipitation - Hours sun. : Hours of sunshine
Hi : Average high in ºF - Lo : Average low in ºF - Pre. : Average precipitation in inch - DP : Days with precipitation - Sun : Hours of sunshine
Ontario Climate Graph - California Climate Chart
Daily normals Ontario - California - January
Day
High
ºF
Low
ºF
Prec/mo
inch
Prec/yr
inch
Snow/mo
inch
Snow/yr
inch
1 Jan
65.2
43.1
0.16
0.16
0.00
0.00
2 Jan
65.3
43.2
0.28
0.28
0.00
0.00
3 Jan
65.3
43.3
0.39
0.39
0.00
0.00
4 Jan
65.3
43.3
0.55
0.55
0.00
0.00
5 Jan
65.3
43.4
0.67
0.67
0.00
0.00
6 Jan
65.4
43.4
0.79
0.79
0.00
0.00
7 Jan
65.4
43.5
0.91
0.91
0.00
0.00
8 Jan
65.4
43.5
1.06
1.06
0.00
0.00
9 Jan
65.4
43.6
1.18
1.18
0.00
0.00
10 Jan
65.4
43.6
1.30
1.30
0.00
0.00
11 Jan
65.4
43.7
1.42
1.42
0.00
0.00
12 Jan
65.4
43.7
1.54
1.54
0.00
0.00
13 Jan
65.4
43.7
1.65
1.65
0.00
0.00
14 Jan
65.4
43.8
1.77
1.77
0.00
0.00
15 Jan
65.3
43.8
1.89
1.89
0.00
0.00
16 Jan
65.3
43.8
2.01
2.01
0.00
0.00
17 Jan
65.3
43.9
2.13
2.13
0.00
0.00
18 Jan
65.2
43.9
2.20
2.20
0.00
0.00
19 Jan
65.2
43.9
2.32
2.32
0.00
0.00
20 Jan
65.2
44.0
2.44
2.44
0.00
0.00
21 Jan
65.1
44.0
2.56
2.56
0.00
0.00
22 Jan
65.1
44.0
2.64
2.64
0.00
0.00
23 Jan
65.1
44.0
2.76
2.76
0.00
0.00
24 Jan
65.0
44.1
2.83
2.83
0.00
0.00
25 Jan
65.0
44.1
2.91
2.91
0.00
0.00
26 Jan
65.0
44.1
2.95
2.95
0.00
0.00
27 Jan
64.9
44.2
2.99
2.99
0.00
0.00
28 Jan
64.9
44.2
3.03
3.03
0.00
0.00
29 Jan
64.9
44.2
3.15
3.15
0.00
0.00
30 Jan
64.9
44.3
3.23
3.23
0.00
0.00
31 Jan
64.8
44.3
3.31
3.31
0.00
0.00
Weather history Ontario - December 2019
Day
High
ºF
Low
ºF
Precip.
inch
Snow
inch
Snow d.
inch
01 Dec
64.0
46.0
0.00
0.00
0.0
02 Dec
71.1
45.0
0.00
0.00
0.0
03 Dec
70.0
51.1
T
0.00
0.0
04 Dec
61.0
53.1
0.95
0.00
0.0
05 Dec
66.0
52.0
0.00
0.00
0.0
06 Dec
69.1
48.9
0.13
-
0.0
07 Dec
64.0
57.0
0.10
0.00
0.0
08 Dec
63.0
53.1
0.07
0.00
0.0
09 Dec
66.9
48.9
0.00
0.00
0.0
10 Dec
68.0
45.0
0.00
0.00
0.0
11 Dec
66.9
44.1
0.00
0.00
0.0
12 Dec
72.0
48.0
0.00
0.00
0.0
13 Dec
73.9
50.0
0.00
0.00
0.0
14 Dec
60.1
51.1
0.03
0.00
0.0
15 Dec
62.1
46.0
0.00
0.00
0.0
16 Dec
68.0
39.9
0.00
0.00
0.0
17 Dec
68.0
37.9
0.00
0.00
0.0
18 Dec
63.0
43.0
0.00
0.00
0.0
19 Dec
66.0
35.1
0.00
0.00
0.0
20 Dec
75.9
42.1
0.00
0.00
0.0
21 Dec
73.0
46.9
0.00
0.00
0.0
22 Dec
68.0
48.0
0.00
0.00
0.0
23 Dec
62.1
50.0
0.70
0.00
0.0
24 Dec
59.0
44.1
0.08
-
0.0
25 Dec
54.0
44.1
0.14
-
0.0
26 Dec
50.0
41.0
1.65
-
0.0
Past weather Ontario
Dec 19
Normal
Average high temperature Av. high temp.
65.6 ºF
66 ºF
Average low temperature Av. low temp.
46.6 ºF
43 ºF
Total precipitation Total precip.
3.85 inch
2.32 inch
Total snowfall Total snowfall
0.00 inch
0 inch
Highest max temperature Highest max temp.
75.9 ºF
-
Lowest max temperature Lowest max temp.
50.0 ºF
-
Highest min temperature Highest min temp.
57.0 ºF
-
Lowest min temperature Lowest min temp.
35.1 ºF
-
Past weather December 2019 incomplete - Missing data
Geo Ontario - California
Country
United States
State
California
County
City
Ontario
Zip code
91798
Longitude
-117.65 dec. degr.
Latitude
34.06 dec. degr.
Altitude - Elevation
1004ft
ICAO
-
IATA
-
Date and Time Ontario - California
Local Time
08:03 AM
Sunrise
06:18 AM
Sunset
05:47 PM
Day / Night
Day
Timezone
(UTC-08:00) Pacific Time (US & Canada)
Timezone DB
America/Los_Angeles
Map of Ontario - California
Ontario weather averages
Annual high temperature
78ºF
Annual low temperature
53ºF
Average annual precip.
15.04 inch
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Station Data
Monthly averages Ontario Longitude: -117.651, Latitude: 34.0633 Average weather Ontario, CA - 91798
Monthly: 1981-2010 normals History: 2015-2019
Abbreviations
Average precipitation in : Av. precipitation in Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...