Weather History for Ontario, OR

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 28 °F 10 °F
Mean Temperature 42 °F 20 °F -1 °F
Min Temperature 31 °F 11 °F -14 °F
Degree Days  
Heating Degree Days (base 65) 66 45 23 1397
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 39 °F 14 °F -20 °F
Precipitation  
Precipitation 0.17 in 0.02 in 0.00 in 0.45 in
Snowdepth - - - -
Wind  
Wind 35 mph 5 mph 0 mph
Gust Wind 45 mph 31 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.86 in 30.39 in 29.68 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 15, 2013 Rise Set
Actual Time 8:16 AM MST 5:10 PM MST
Civil Twilight 7:43 AM MST 5:43 PM MST
Nautical Twilight 7:06 AM MST 6:20 PM MST
Astronomical Twilight 6:31 AM MST 6:55 PM MST
Moon 4:20 PM MST (12/15) 6:34 AM MST (12/15)
Length of Visible Light 10h 00m
Length of Day
8h 54m
Waxing Gibbous, 98% of the Moon is Illuminated
Dec 15
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Weather History Calendar

Precipitation Actual month total 0.45 Normal Month Total: 1.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
53 | 31 0.03
Average:
40 | 22 0.05
Rain
Actual:
57 | 27 0.02
Average:
39 | 22 0.05
Partly Cloudy
Actual:
37 | 23 0.00
Average:
39 | 22 0.04
Partly Cloudy
Actual:
28 | 15 0.00
Average:
39 | 21 0.05
Partly Cloudy
Actual:
25 | 11 0.00
Average:
38 | 21 0.05
Snow
Actual:
27 | 7 0.07
Average:
38 | 21 0.05
Snow
Actual:
22 | 6 0.11
Average:
38 | 21 0.05
Scattered Clouds
Actual:
10 | -12 0.00
Average:
37 | 21 0.05
Partly Cloudy
Actual:
11 | -14 0.00
Average:
37 | 20 0.05
Partly Cloudy
Actual:
18 | -2 0.00
Average:
37 | 20 0.05
Partly Cloudy
Actual:
22 | 7 0.00
Average:
37 | 20 0.05
Scattered Clouds
Actual:
20 | -1 0.00
Average:
36 | 20 0.06
Snow
Actual:
27 | 13 0.01
Average:
36 | 20 0.05
Scattered Clouds
Actual:
31 | 13 0.00
Average:
36 | 19 0.05
Scattered Clouds
Actual:
30 | 14 0.00
Average:
36 | 19 0.06
Fog
Actual:
22 | 9 T
Average:
35 | 19 0.06
Fog
Actual:
25 | 19 0.00
Average:
35 | 19 0.06
Snow
Actual:
22 | 20 0.02
Average:
35 | 19 0.06
Scattered Clouds
Actual:
34 | 17 0.00
Average:
35 | 19 0.06
Snow
Actual:
25 | 8 0.17
Average:
35 | 19 0.06
Snow
Actual:
30 | 20 0.01
Average:
35 | 19 0.05
Overcast
Actual:
34 | 22 T
Average:
35 | 19 0.06
Rain
Actual:
36 | 28 0.01
Average:
35 | 19 0.06
Clear
Actual:
37 | 12 0.00
Average:
35 | 19 0.05
Fog
Actual:
24 | 4 0.00
Average:
34 | 19 0.06
Fog
Actual:
22 | 5 0.00
Average:
34 | 19 0.06
Fog
Actual:
17 | 8 0.00
Average:
34 | 19 0.06
Fog
Actual:
30 | 6 0.00
Average:
34 | 19 0.06
Clear
Actual:
31 | 7 0.00
Average:
34 | 19 0.05
Scattered Clouds
Actual:
30 | 13 T
Average:
34 | 19 0.06
Partly Cloudy
Actual:
33 | 18 0.00
Average:
34 | 19 0.05
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 53 42 31 39 34 28 92 79 66 30.39 30.17 29.96 10 3 1 17 3 22 0.03 Rain
2 57 42 27 38 31 17 72 61 50 29.94 29.82 29.68 10 10 10 32 14 45 0.02 Rain
3 37 30 23 21 17 13 69 59 48 30.09 30.00 29.95 10 10 10 26 14 33 0.00  
4 28 22 15 12 9 5 68 54 39 30.33 30.23 30.11 10 10 10 24 10 30 0.00  
5 25 18 11 8 7 5 83 65 46 30.36 30.31 30.26 10 10 10 7 2 8 0.00  
6 27 17 7 20 13 3 92 74 55 30.29 30.13 29.92 10 7 0 18 5 22 0.07 Fog , Snow
7 22 14 6 19 11 -6 92 75 57 30.33 29.98 29.85 10 3 1 35 18 42 0.11 Snow
8 10 -1 -12 -2 -10 -17 79 69 58 30.71 30.54 30.35 10 10 10 22 5 27 0.00  
9 11 -1 -14 2 -9 -20 87 75 63 30.86 30.75 30.55 10 10 10 9 3 10 0.00  
10 18 8 -2 9 1 -7 79 68 56 30.71 30.67 30.64 10 9 6 12 5 14 0.00  
11 22 15 7 12 7 2 83 73 62 30.77 30.71 30.60 10 9 7 10 5 12 0.00  
12 20 10 -1 10 3 -5 87 77 67 30.70 30.58 30.44 9 8 7 8 4 10 0.00  
13 27 20 13 21 15 9 88 78 68 30.63 30.49 30.33 8 5 1 7 2 9 0.01 Snow
14 31 22 13 22 16 10 92 81 69 30.74 30.69 30.63 8 6 4 9 4 10 0.00  
15 30 22 14 23 17 11 92 82 72 30.67 30.63 30.58 6 4 3 9 3 11 0.00  
16 22 16 9 19 12 5 100 88 76 30.71 30.61 30.52 4 1 0 6 1 7 T Fog
17 25 22 19 20 18 15 92 87 81 30.69 30.46 30.27 6 2 0 7 3 8 0.00 Fog
18 22 21 20 19 17 16 92 88 84 30.34 30.13 29.91 8 3 0 8 2 8 0.02 Fog , Snow
19 34 26 17 22 16 9 91 68 45 30.19 30.08 29.98 10 9 5 31 17 38 0.00  
20 25 17 8 21 16 4 88 73 57 30.21 29.99 29.84 10 4 0 13 3 15 0.17 Fog , Snow
21 30 25 20 23 20 17 92 81 69 30.24 30.03 29.84 10 8 2 13 4 14 0.01 Snow
22 34 28 22 28 24 20 88 79 69 30.47 30.36 30.23 9 5 4 7 2 7 T  
23 36 32 28 30 27 25 92 84 75 30.49 30.43 30.34 6 5 3 12 2 13 0.01 Rain
24 37 25 12 26 20 8 85 71 56 30.71 30.59 30.39 10 9 2 20 6 23 0.00  
25 24 14 4 18 7 2 92 85 77 30.80 30.68 30.62 10 6 0 8 3 9 0.00 Fog
26 22 14 5 17 8 1 92 85 77 30.73 30.61 30.51 10 4 0 6 2 7 0.00 Fog
27 17 13 8 14 10 5 96 88 80 30.65 30.51 30.35 6 2 0 7 1 9 0.00 Fog
28 30 18 6 21 11 3 92 81 69 30.56 30.43 30.29 10 4 0 8 2 10 0.00 Fog
29 31 19 7 22 13 5 96 83 69 30.58 30.52 30.44 10 6 2 8 2 10 0.00  
30 30 22 13 25 18 10 92 84 75 30.53 30.47 30.42 10 8 4 8 2 9 T  
31 33 26 18 27 23 16 92 81 69 30.46 30.39 30.31 6 4 2 9 3 11 0.00