Weather History for Riverside, CA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 106 °F 96 °F 87 °F
Mean Temperature 89 °F 82 °F 73 °F
Min Temperature 74 °F 66 °F 59 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 24 17 8 497
Growing Degree Days (base 50) 38 31 23 927
Dew Point  
Dew Point 67 °F 52 °F 21 °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 18 mph 4 mph 0 mph
Gust Wind 25 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.03 in 29.89 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 19, 2012 Rise Set
Actual Time 6:36 AM PDT 6:49 PM PDT
Civil Twilight 6:11 AM PDT 7:14 PM PDT
Nautical Twilight 5:42 AM PDT 7:44 PM PDT
Astronomical Twilight 5:12 AM PDT 8:13 PM PDT
Moon 10:37 AM PDT (9/19) 9:18 PM PDT (9/19)
Length of Visible Light 13h 03m
Length of Day
12h 13m
Waxing Crescent, 18% of the Moon is Illuminated
Sep 19
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 0.00 Normal Month Total: 0.25
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
97 | 64 0.00
Average:
93 | 64 0.00
Clear
Actual:
98 | 59 0.00
Average:
93 | 64 0.00
Scattered Clouds
Actual:
101 | 63 0.00
Average:
93 | 64 0.00
Scattered Clouds
Actual:
99 | 68 0.00
Average:
93 | 64 0.00
Partly Cloudy
Actual:
92 | 73 T
Average:
93 | 64 0.00
Clear
Actual:
92 | 67 0.00
Average:
93 | 63 0.01
Scattered Clouds
Actual:
92 | 68 0.00
Average:
93 | 63 0.01
Scattered Clouds
Actual:
97 | 69 0.00
Average:
92 | 63 0.01
Scattered Clouds
Actual:
102 | 72 0.00
Average:
92 | 63 0.00
Partly Cloudy
Actual:
93 | 74 0.00
Average:
92 | 63 0.01
Partly Cloudy
Actual:
87 | 73 0.00
Average:
92 | 63 0.01
Partly Cloudy
Actual:
93 | 70 0.00
Average:
92 | 63 0.01
Clear
Actual:
104 | 66 0.00
Average:
91 | 63 0.01
Clear
Actual:
106 | 68 0.00
Average:
91 | 62 0.01
Clear
Actual:
105 | 73 0.00
Average:
91 | 62 0.01
Clear
Actual:
94 | 67 0.00
Average:
91 | 62 0.01
Clear
Actual:
91 | 64 0.00
Average:
90 | 62 0.01
Clear
Actual:
94 | 62 0.00
Average:
90 | 62 0.01
Clear
Actual:
97 | 63 0.00
Average:
90 | 62 0.01
Scattered Clouds
Actual:
101 | 65 0.00
Average:
89 | 61 0.01
Scattered Clouds
Actual:
101 | 65 0.00
Average:
89 | 61 0.01
Partly Cloudy
Actual:
99 | 70 0.00
Average:
89 | 61 0.01
Scattered Clouds
Actual:
101 | 69 0.00
Average:
88 | 61 0.01
Clear
Actual:
92 | 65 0.00
Average:
88 | 61 0.01
Clear
Actual:
87 | 61 0.00
Average:
88 | 60 0.01
Scattered Clouds
Actual:
87 | 59 0.00
Average:
87 | 60 0.01
Scattered Clouds
Actual:
93 | 61 0.00
Average:
87 | 60 0.01
Scattered Clouds
Actual:
95 | 64 0.00
Average:
87 | 60 0.01
Scattered Clouds
Actual:
96 | 63 0.00
Average:
87 | 59 0.02
Clear
Actual:
104 | 65 0.00
Average:
86 | 59 0.01
 

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

2012 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 97 81 64 57 43 21 73 40 7 29.90 29.87 29.82 10 10 10 14 3 20 0.00  
2 98 79 59 51 41 22 57 32 7 29.90 29.86 29.81 10 10 10 14 4 20 0.00  
3 101 82 63 52 46 28 63 36 8 29.94 29.89 29.84 10 10 10 16 4 22 0.00  
4 99 84 68 52 44 34 55 33 10 29.96 29.91 29.84 10 10 10 15 4 23 0.00  
5 92 83 73 53 46 34 46 30 13 29.95 29.91 29.86 10 10 10 14 2 18 T  
6 92 80 67 59 52 45 53 41 29 29.96 29.91 29.86 10 10 10 16 3 22 0.00  
7 92 80 68 62 57 53 68 52 36 29.99 29.94 29.88 10 10 10 15 4 22 0.00  
8 97 83 69 60 58 55 66 47 27 29.92 29.86 29.77 10 10 10 14 3 21 0.00  
9 102 87 72 64 61 59 68 50 31 29.90 29.82 29.74 10 10 10 17 4 25 0.00  
10 93 84 74 65 64 61 68 53 38 29.86 29.83 29.77 10 10 10 14 4 21 0.00  
11 87 80 73 67 65 64 73 62 50 29.96 29.87 29.82 10 10 10 16 4 23 0.00  
12 93 82 70 65 64 63 84 61 38 30.03 29.94 29.86 10 9 6 15 4 21 0.00  
13 104 85 66 64 59 50 87 53 18 30.00 29.94 29.84 10 10 8 15 3 20 0.00  
14 106 87 68 56 45 34 61 35 8 29.98 29.93 29.85 10 10 10 16 4 24 0.00  
15 105 89 73 50 40 21 44 25 5 29.98 29.93 29.86 10 10 10 17 6 22 0.00  
16 94 81 67 60 50 44 44 33 22 29.99 29.94 29.88 10 10 10 16 5 23 0.00  
17 91 78 64 62 57 49 93 60 26 30.00 29.94 29.88 10 10 4 14 3 21 0.00  
18 94 78 62 58 55 49 84 54 24 29.98 29.93 29.87 10 10 8 16 4 21 0.00  
19 97 80 63 56 49 43 67 42 17 29.94 29.90 29.83 10 10 10 15 3 22 0.00  
20 101 83 65 58 52 42 63 39 14 29.91 29.87 29.80 10 10 10 15 3 21 0.00  
21 101 83 65 59 54 50 66 43 19 29.90 29.84 29.77 10 10 10 15 4 20 0.00  
22 99 85 70 61 56 50 70 46 21 29.91 29.86 29.81 10 10 8 17 2 21 0.00  
23 101 85 69 57 51 40 66 39 12 29.94 29.88 29.85 10 10 10 17 3 21 0.00  
24 92 79 65 53 49 43 58 38 18 29.94 29.89 29.84 10 10 10 17 5 25 0.00  
25 87 74 61 57 52 46 65 46 27 29.89 29.85 29.78 10 10 10 14 3 20 0.00  
26 87 73 59 58 56 50 90 61 31 29.91 29.84 29.75 10 9 4 15 3 21 0.00  
27 93 77 61 59 56 48 84 54 23 29.89 29.85 29.78 10 9 6 16 4 23 0.00  
28 95 80 64 56 50 42 73 45 17 29.89 29.85 29.78 10 10 10 18 3 23 0.00  
29 96 80 63 56 50 44 73 47 20 29.93 29.89 29.84 10 10 10 17 4 21 0.00  
30 104 85 65 54 47 33 63 37 10 29.95 29.90 29.83 10 10 10 17 4 23 0.00