Weather History for KVSF - December, 2013

Change the Weather History Date:

Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 47 °F 32 °F 9 °F
Mean Temperature 40 °F 25 °F -2 °F
Min Temperature 33 °F 17 °F -13 °F
Degree Days  
Heating Degree Days (base 65) 67 40 25 1252
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 47 °F 18 °F -17 °F
Precipitation  
Precipitation 0.95 in 0.11 in 0.00 in 1.51 in
Snowdepth - - - -
Wind  
Wind 24 mph 3 mph 0 mph
Gust Wind 31 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.64 in 30.07 in 29.50 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Dec. 20, 2013 Rise Set
Actual Time 7:18 AM EST 4:16 PM EST
Civil Twilight 6:46 AM EST 4:49 PM EST
Nautical Twilight 6:10 AM EST 5:25 PM EST
Astronomical Twilight 5:35 AM EST 6:00 PM EST
Moon 7:39 PM EST (12/20) 9:06 AM EST (12/20)
Length of Visible Light 10h 03m
Length of Day
8h 57m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 20
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

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 38 32 25 28 23 13 92 74 55 30.39 30.19 30.05 10 10 8 8 1 10 0.00  
2 38 34 30 33 30 28 100 91 82 30.05 29.98 29.93 10 9 5 5 0 5 0.00  
3 41 34 26 32 29 25 100 88 76 29.99 29.95 29.90 10 4 1 7 1 9 0.00  
4 42 33 23 26 24 21 100 73 46 30.21 30.12 29.99 10 9 4 10 2 13 0.00  
5 36 30 24 36 32 24 100 89 78 30.21 30.05 29.91 10 2 0 5 0 5 T Fog , Rain
6 45 38 31 42 33 24 100 77 53 30.15 29.98 29.86 10 5 0 22 5 27 0.06 Fog , Rain , Snow
7 34 30 25 30 20 11 100 73 45 30.47 30.26 30.10 10 9 2 17 6 26 T Snow
8 29 25 21 16 13 9 77 62 46 30.59 30.53 30.47 10 10 10 10 1 14 0.00  
9 30 26 22 28 24 11 100 78 55 30.47 30.10 29.87 10 3 0 10 2 14 T Fog , Rain , Snow
10 34 26 18 28 18 6 100 74 47 29.98 29.86 29.79 10 8 1 21 6 26 T Snow
11 29 22 15 17 12 6 88 64 39 30.16 30.10 30.01 10 9 1 20 7 29 T Snow
12 20 13 5 11 1 -6 88 61 34 30.30 30.19 30.02 10 10 10 17 4 25 T  
13 23 13 3 15 8 -4 80 67 54 30.45 30.08 29.94 10 8 1 17 6 24 T Snow
14 11 6 1 7 -1 -9 83 67 50 30.64 30.46 30.17 10 6 0 9 2 13 T Fog , Snow
15 27 20 12 21 14 9 92 77 62 30.15 29.75 29.50 10 4 0 13 2 20 T Fog , Snow
16 24 14 4 12 4 -5 96 68 39 30.22 29.97 29.73 10 10 9 24 8 31 T  
17 9 -2 -13 5 -2 -17 92 76 60 30.31 30.17 30.05 10 4 0 8 1 10 T Fog , Snow
18 29 16 2 19 12 0 92 78 63 30.04 30.00 29.94 10 9 3 15 1 21 T Snow
19 40 30 20 27 21 17 92 70 47 30.08 30.01 29.93 10 9 4 14 4 22 T Snow
20 39 35 30 34 30 26 100 80 59 30.09 29.96 29.89 10 6 2 8 1 9 0.01 Rain
21 46 39 32 37 34 32 100 88 76 29.92 29.88 29.85 10 3 0 7 0 8 0.18 Fog , Rain
22 47 40 33 47 36 33 100 100 100 29.96 29.83 29.65 2 1 0 10 1 14 0.04 Fog , Rain
23 40 37 33 38 34 22 100 85 69 30.16 30.02 29.93 10 3 0 18 4 25 0.23 Fog , Rain
24 33 25 16 22 12 6 68 59 50 30.27 30.17 30.09 10 10 10 18 8 25 T  
25 19 13 7 9 1 -3 76 62 47 30.53 30.44 30.25 10 10 4 15 3 22 T Snow
26 27 21 14 23 17 6 92 74 56 30.45 30.21 30.07 10 6 0 10 2 14 0.04 Fog , Snow
27 31 25 19 20 18 15 100 77 53 30.25 30.21 30.19 10 9 6 15 3 22 0.00  
28 42 28 13 29 22 12 100 79 57 30.18 30.07 29.99 10 9 3 18 3 27 0.00  
29 34 29 23 32 29 22 100 91 82 30.02 29.74 29.57 6 2 0 5 0 5 0.95 Fog , Rain , Snow
30 37 22 7 32 22 0 100 73 46 30.20 29.80 29.57 10 6 0 15 8 28 T Fog , Rain
31 20 9 -2 9 2 -5 87 72 56 30.20 30.13 30.04 10 9 4 20 3 25 T Snow