Weather History for Ontario, CA

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Month of August, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 104 °F 94 °F 84 °F
Mean Temperature 90 °F 80 °F 71 °F
Min Temperature 82 °F 65 °F 58 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 25 15 6 451
Growing Degree Days (base 50) 40 29 20 906
Dew Point  
Dew Point 68 °F 54 °F 27 °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 28 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.05 in 29.87 in 29.68 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 31, 2013 Rise Set
Actual Time 6:23 AM PDT 7:17 PM PDT
Civil Twilight 5:57 AM PDT 7:42 PM PDT
Nautical Twilight 5:27 AM PDT 8:12 PM PDT
Astronomical Twilight 4:56 AM PDT 8:43 PM PDT
Moon 2:03 AM PDT (8/31) 4:11 PM PDT (8/31)
Length of Visible Light 13h 44m
Length of Day
12h 53m
Waning Crescent, 20% of the Moon is Illuminated
Aug 31
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.13
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
85 | 59 0.00
Average:
93 | 64 0.00
Partly Cloudy
Actual:
87 | 58 0.00
Average:
93 | 64 0.01
Partly Cloudy
Actual:
89 | 59 0.00
Average:
94 | 64 0.00
Scattered Clouds
Actual:
90 | 59 0.00
Average:
94 | 64 0.01
Scattered Clouds
Actual:
92 | 60 0.00
Average:
94 | 64 0.00
Scattered Clouds
Actual:
89 | 58 0.00
Average:
94 | 65 0.01
Scattered Clouds
Actual:
88 | 59 0.00
Average:
94 | 65 0.00
Clear
Actual:
88 | 60 0.00
Average:
94 | 65 0.01
Clear
Actual:
86 | 58 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
84 | 58 0.00
Average:
94 | 65 0.01
Clear
Actual:
89 | 58 0.00
Average:
94 | 65 0.00
Fog
Actual:
91 | 60 0.00
Average:
94 | 65 0.01
Scattered Clouds
Actual:
94 | 60 0.00
Average:
94 | 65 0.00
Clear
Actual:
100 | 61 0.00
Average:
94 | 65 0.01
Clear
Actual:
99 | 64 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
97 | 67 0.00
Average:
94 | 65 0.00
Clear
Actual:
98 | 67 0.00
Average:
94 | 65 0.01
Scattered Clouds
Actual:
95 | 65 0.00
Average:
94 | 65 0.00
Thunderstorm
Actual:
92 | 66 T
Average:
94 | 65 0.01
Partly Cloudy
Actual:
95 | 66 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
100 | 66 0.00
Average:
94 | 65 0.01
Partly Cloudy
Actual:
98 | 68 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
100 | 68 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
97 | 63 0.00
Average:
94 | 65 0.01
Scattered Clouds
Actual:
97 | 67 0.00
Average:
94 | 65 0.00
Partly Cloudy
Actual:
92 | 74 T
Average:
94 | 65 0.01
Partly Cloudy
Actual:
97 | 75 0.00
Average:
94 | 65 0.00
Scattered Clouds
Actual:
100 | 74 0.00
Average:
93 | 65 0.01
Partly Cloudy
Actual:
104 | 75 0.00
Average:
93 | 65 0.00
Partly Cloudy
Actual:
97 | 82 0.00
Average:
93 | 65 0.00
Partly Cloudy
Actual:
96 | 79 0.00
Average:
93 | 65 0.00
 

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
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 85 72 59 56 54 46 87 57 27 30.03 29.95 29.86 10 6 2 14 6 17 0.00  
2 87 73 58 57 54 50 93 62 30 29.95 29.90 29.85 10 8 4 17 6 24 0.00  
3 89 74 59 58 56 50 90 59 28 29.97 29.93 29.88 10 7 3 15 5 20 0.00  
4 90 75 59 58 55 49 90 58 26 30.01 29.94 29.88 10 8 3 16 6 21 0.00  
5 92 76 60 57 53 40 84 50 16 29.97 29.92 29.86 10 8 4 18 5 26 0.00  
6 89 74 58 56 51 39 87 53 18 30.01 29.96 29.92 10 8 3 17 6 23 0.00  
7 88 74 59 56 52 45 87 55 23 30.05 29.99 29.94 10 9 4 15 6 20 0.00  
8 88 74 60 56 52 43 84 53 21 29.96 29.92 29.86 10 10 9 15 4 20 0.00  
9 86 72 58 55 53 45 84 55 25 29.94 29.90 29.86 10 9 5 17 7 23 0.00  
10 84 71 58 56 54 48 93 62 31 30.01 29.96 29.91 10 8 2 15 6 20 0.00  
11 89 74 58 56 54 48 87 56 24 29.96 29.92 29.85 10 9 6 18 5 23 0.00  
12 91 76 60 58 55 48 84 54 24 29.94 29.89 29.84 10 9 5 16 6 21 0.00 Fog
13 94 77 60 59 57 52 90 57 24 29.97 29.90 29.81 10 7 2 15 5 18 0.00  
14 100 81 61 59 57 49 90 54 18 29.91 29.85 29.76 10 8 4 16 5 21 0.00  
15 99 82 64 59 56 46 78 48 18 29.90 29.86 29.82 10 8 5 18 5 28 0.00  
16 97 82 67 59 54 42 73 46 18 29.91 29.89 29.84 10 9 6 17 5 23 0.00  
17 98 83 67 56 50 44 61 39 17 29.91 29.84 29.75 10 10 8 16 5 24 0.00  
18 95 80 65 58 55 50 73 48 23 29.86 29.81 29.75 10 10 8 20 6 24 0.00  
19 92 79 66 59 58 55 73 53 32 29.91 29.86 29.79 10 10 7 13 6 21 T Rain , Thunderstorm
20 95 81 66 60 56 49 78 50 22 29.88 29.84 29.78 10 9 6 16 5 23 0.00  
21 100 83 66 57 50 40 68 41 14 29.88 29.84 29.77 10 10 9 18 4 25 0.00  
22 98 83 68 50 43 33 51 32 12 29.88 29.83 29.74 10 10 10 15 4 22 0.00  
23 100 84 68 50 44 27 47 28 8 29.82 29.76 29.68 10 10 10 16 4 23 0.00  
24 97 80 63 56 50 37 73 44 14 29.83 29.77 29.71 10 10 9 17 4 23 0.00  
25 97 82 67 56 50 37 61 37 13 29.87 29.83 29.79 10 10 8 18 5 25 0.00  
26 92 83 74 66 58 52 55 46 36 29.88 29.84 29.78 10 10 10 14 3 20 T  
27 97 86 75 59 54 47 50 39 27 29.80 29.76 29.71 10 10 10 17 5 24 0.00  
28 100 87 74 56 51 44 41 31 21 29.86 29.78 29.74 10 10 7 17 5 24 0.00  
29 104 90 75 55 50 45 46 33 19 29.90 29.85 29.81 10 10 10 15 3 22 0.00  
30 97 90 82 68 63 50 51 41 31 29.93 29.89 29.86 10 10 10 20 5 26 0.00  
31 96 88 79 68 66 63 63 49 35 29.93 29.88 29.81 10 10 10 20 6 26 0.00