Weather History for Ontario, CA

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 104 °F 92 °F 75 °F
Mean Temperature 91 °F 78 °F 68 °F
Min Temperature 77 °F 64 °F 51 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 26 13 3 398
Growing Degree Days (base 50) 41 28 16 839
Dew Point  
Dew Point 66 °F 49 °F 12 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 20 mph 5 mph 0 mph
Gust Wind 35 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.04 in 29.81 in 29.57 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 23, 2013 Rise Set
Actual Time 6:39 AM PDT 6:45 PM PDT
Civil Twilight 6:14 AM PDT 7:10 PM PDT
Nautical Twilight 5:45 AM PDT 7:39 PM PDT
Astronomical Twilight 5:15 AM PDT 8:08 PM PDT
Moon 9:33 PM PDT (9/23) 10:50 AM PDT (9/23)
Length of Visible Light 12h 55m
Length of Day
12h 05m
Waning Gibbous, 80% of the Moon is Illuminated
Sep 23
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.27
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
94 | 73 0.00
Average:
93 | 65 0.00
Partly Cloudy
Actual:
96 | 72 0.00
Average:
93 | 65 0.00
Partly Cloudy
Actual:
101 | 75 0.00
Average:
93 | 65 0.00
Scattered Clouds
Actual:
104 | 74 0.00
Average:
92 | 65 0.00
Scattered Clouds
Actual:
104 | 77 0.00
Average:
92 | 64 0.00
Partly Cloudy
Actual:
103 | 76 0.00
Average:
92 | 64 0.01
Scattered Clouds
Actual:
102 | 76 0.00
Average:
92 | 64 0.01
Scattered Clouds
Actual:
96 | 71 0.00
Average:
92 | 64 0.01
Thunderstorm
Actual:
90 | 71 0.00
Average:
91 | 64 0.01
Scattered Clouds
Actual:
89 | 61 0.00
Average:
91 | 64 0.01
Fog
Actual:
87 | 60 0.00
Average:
91 | 64 0.01
Clear
Actual:
94 | 63 0.00
Average:
90 | 64 0.01
Clear
Actual:
94 | 63 0.00
Average:
90 | 63 0.01
Clear
Actual:
99 | 68 0.00
Average:
90 | 63 0.01
Clear
Actual:
101 | 67 0.00
Average:
90 | 63 0.01
Clear
Actual:
101 | 66 0.00
Average:
89 | 63 0.01
Clear
Actual:
89 | 62 0.00
Average:
89 | 63 0.01
Partly Cloudy
Actual:
83 | 60 0.00
Average:
89 | 62 0.01
Fog
Actual:
87 | 60 0.00
Average:
88 | 62 0.01
Partly Cloudy
Actual:
78 | 63 0.00
Average:
88 | 62 0.01
Partly Cloudy
Actual:
80 | 62 0.00
Average:
88 | 62 0.01
Scattered Clouds
Actual:
80 | 57 0.00
Average:
87 | 62 0.01
Clear
Actual:
94 | 57 0.00
Average:
87 | 61 0.01
Scattered Clouds
Actual:
90 | 62 0.00
Average:
87 | 61 0.01
Scattered Clouds
Actual:
81 | 59 0.00
Average:
86 | 61 0.01
Partly Cloudy
Actual:
75 | 60 T
Average:
86 | 61 0.01
Clear
Actual:
85 | 51 0.00
Average:
86 | 60 0.01
Clear
Actual:
90 | 54 0.00
Average:
85 | 60 0.01
Clear
Actual:
90 | 56 0.00
Average:
85 | 60 0.02
Clear
Actual:
89 | 57 0.00
Average:
85 | 60 0.02
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 94 84 73 66 64 62 73 55 36 29.89 29.85 29.79 10 10 10 15 5 23 0.00  
2 96 84 72 65 62 57 79 56 33 29.88 29.83 29.76 10 10 10 16 4 21 0.00  
3 101 88 75 64 59 54 64 43 21 29.86 29.81 29.76 10 10 10 17 5 20 0.00  
4 104 89 74 60 55 49 61 41 20 29.88 29.82 29.78 10 10 10 17 4 21 0.00  
5 104 91 77 55 51 43 45 31 17 29.84 29.81 29.75 10 10 10 18 5 24 0.00  
6 103 90 76 53 47 40 42 29 16 29.83 29.79 29.73 10 10 10 16 3 21 0.00  
7 102 89 76 53 49 42 42 29 16 29.83 29.79 29.74 10 10 10 16 5 35 0.00  
8 96 84 71 56 51 46 53 36 19 29.81 29.76 29.70 10 10 10 16 4 21 0.00  
9 90 81 71 61 52 42 53 38 23 29.79 29.74 29.68 10 10 10 18 6 25 0.00 Rain , Thunderstorm
10 89 75 61 57 55 48 90 58 26 29.91 29.84 29.76 10 9 5 17 7 22 0.00  
11 87 74 60 58 56 53 84 58 32 29.97 29.92 29.87 10 9 6 15 6 20 0.00 Fog
12 94 79 63 58 51 36 84 50 15 29.91 29.85 29.77 10 8 5 15 4 20 0.00  
13 94 79 63 57 50 40 57 38 18 29.80 29.71 29.63 10 10 10 15 4 20 0.00  
14 99 84 68 56 53 47 61 40 18 29.68 29.64 29.57 10 10 6 15 4 25 0.00  
15 101 84 67 56 52 46 63 40 16 29.74 29.69 29.64 10 10 8 17 5 24 0.00  
16 101 84 66 56 50 41 63 39 14 29.79 29.74 29.67 10 10 9 20 4 25 0.00  
17 89 76 62 57 54 48 78 52 26 29.78 29.74 29.67 10 10 10 16 5 24 0.00  
18 83 72 60 58 56 51 90 62 34 29.82 29.76 29.70 10 6 2 14 4 18 0.00  
19 87 74 60 59 57 54 84 59 34 29.81 29.76 29.70 10 9 6 16 5 21 0.00 Fog
20 78 71 63 59 59 57 90 70 50 29.89 29.83 29.79 10 6 2 15 5 18 0.00  
21 80 71 62 59 56 51 90 65 39 29.89 29.84 29.76 10 8 3 16 7 23 0.00  
22 80 69 57 55 50 44 84 56 28 29.83 29.79 29.75 10 10 9 15 5 20 0.00  
23 94 76 57 48 40 31 62 37 11 29.86 29.82 29.77 10 10 10 14 3 21 0.00  
24 90 76 62 45 40 29 48 32 16 29.92 29.85 29.80 10 10 10 20 5 25 0.00  
25 81 70 59 54 48 43 60 45 29 29.82 29.74 29.67 10 10 10 20 4 28 0.00  
26 75 68 60 55 45 28 84 52 20 29.87 29.76 29.69 10 10 10 20 7 31 T  
27 85 68 51 43 31 15 64 36 8 29.97 29.92 29.87 10 10 10 12 3 16 0.00  
28 90 72 54 32 24 12 36 21 6 30.02 29.97 29.91 10 10 10 16 3 22 0.00  
29 90 73 56 41 30 17 40 24 7 30.04 29.99 29.93 10 10 10 16 4 22 0.00  
30 89 73 57 46 37 23 47 29 11 29.96 29.89 29.83 10 10 10 15 4 24 0.00