Weather History for San Francisco, CA

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Month of January, 2005

  Max Avg Min Sum
Temperature  
Max Temperature 61 °F 54 °F 46 °F
Mean Temperature 56 °F 49 °F 44 °F
Min Temperature 51 °F 45 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 22 15 9 480
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 1 0 20
Dew Point  
Dew Point 56 °F 47 °F 38 °F
Precipitation  
Precipitation 1.16 in 0.14 in 0.00 in 4.19 in
Snowdepth - - - -
Wind  
Wind 34 mph 6 mph 0 mph
Gust Wind 47 mph 29 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.42 in 30.07 in 29.26 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 01, 2005 Rise Set
Actual Time 7:24 AM PST 5:02 PM PST
Civil Twilight 6:55 AM PST 5:31 PM PST
Nautical Twilight 6:22 AM PST 6:04 PM PST
Astronomical Twilight 5:50 AM PST 6:35 PM PST
Moon 10:53 PM PST (1/1) 11:09 AM PST (1/1)
Length of Visible Light 10h 35m
Length of Day
9h 37m
Waning Gibbous, 69% of the Moon is Illuminated
Jan 1
Waning Gibbous
Jan 3
Last Quarter
Jan 10
New
Jan 16
First Quarter
Jan 25
Full

Weather History Calendar

Precipitation Actual month total 4.19 Average Month Total: 4.60
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
55 | 46 0.05
Average:
54 | 40 0.11
Rain
Actual:
48 | 46 1.16
Average:
53 | 40 0.14
Rain
Actual:
53 | 44 0.01
Average:
54 | 40 0.14
Partly Cloudy
Actual:
51 | 42 0.00
Average:
53 | 40 0.35
Rain
Actual:
52 | 43 0.08
Average:
54 | 41 0.07
Rain
Actual:
52 | 48 0.02
Average:
53 | 40 0.11
Rain
Actual:
57 | 48 0.59
Average:
53 | 41 0.07
Rain
Actual:
54 | 48 0.42
Average:
54 | 42 0.12
Rain
Actual:
54 | 48 0.02
Average:
54 | 42 0.13
Rain
Actual:
59 | 43 0.47
Average:
55 | 42 0.11
Rain
Actual:
53 | 43 0.45
Average:
54 | 42 0.17
Scattered Clouds
Actual:
54 | 39 0.00
Average:
55 | 43 0.18
Partly Cloudy
Actual:
46 | 41 0.00
Average:
56 | 42 0.20
Scattered Clouds
Actual:
51 | 39 0.00
Average:
56 | 42 0.24
Partly Cloudy
Actual:
50 | 39 0.00
Average:
56 | 43 0.13
Partly Cloudy
Actual:
57 | 43 0.00
Average:
57 | 44 0.20
Partly Cloudy
Actual:
55 | 45 0.00
Average:
56 | 43 0.11
Partly Cloudy
Actual:
53 | 46 0.00
Average:
57 | 43 0.23
Scattered Clouds
Actual:
54 | 44 0.00
Average:
56 | 43 0.05
Scattered Clouds
Actual:
54 | 45 0.00
Average:
56 | 43 0.17
Scattered Clouds
Actual:
54 | 46 0.00
Average:
57 | 43 0.19
Fog
Actual:
52 | 44 0.00
Average:
57 | 43 0.15
Partly Cloudy
Actual:
53 | 45 0.00
Average:
56 | 42 0.15
Partly Cloudy
Actual:
53 | 45 0.00
Average:
57 | 42 0.17
Rain
Actual:
53 | 46 0.09
Average:
57 | 42 0.11
Rain
Actual:
60 | 51 0.33
Average:
57 | 43 0.12
Rain
Actual:
59 | 46 0.28
Average:
56 | 42 0.11
Thunderstorm
Actual:
57 | 48 0.22
Average:
56 | 42 0.11
Scattered Clouds
Actual:
57 | 46 0.00
Average:
56 | 42 0.21
Scattered Clouds
Actual:
61 | 41 0.00
Average:
56 | 42 0.14
Scattered Clouds
Actual:
61 | 44 0.00
Average:
56 | 42 0.11
 

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

2005 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 55 50 46 47 45 42 96 84 60 30.06 30.01 29.92 10 10 8 17 7 - 0.05 Rain
2 48 47 46 48 47 45 100 96 93 30.00 29.88 29.81 10 8 3 15 8 - 1.16 Rain
3 53 48 44 48 46 45 100 92 80 29.88 29.83 29.79 10 10 9 13 5 - 0.01 Rain
4 51 46 42 48 45 43 100 93 77 30.04 29.87 29.79 10 10 9 9 3 - 0.00  
5 52 48 43 49 47 43 100 95 89 30.25 30.19 30.06 10 9 5 10 2 - 0.08 Rain
6 52 50 48 49 47 44 96 91 74 30.23 30.07 29.73 10 8 6 14 5 - 0.02 Rain
7 57 52 48 56 50 47 100 93 83 29.69 29.46 29.26 10 7 2 34 17 46 0.59 Rain
8 54 51 48 49 47 45 96 87 75 29.92 29.77 29.70 10 9 4 25 15 33 0.42 Rain
9 54 51 48 51 49 47 100 95 83 30.01 29.95 29.89 10 10 7 8 4 - 0.02 Rain
10 59 51 43 51 47 43 100 92 69 30.03 29.87 29.70 10 8 3 24 5 47 0.47 Rain
11 53 48 43 48 45 42 97 85 74 30.13 29.86 29.69 10 9 2 31 19 46 0.45 Rain
12 54 46 39 48 44 40 100 90 62 30.30 30.24 30.14 10 10 10 14 2 - 0.00  
13 46 44 41 45 44 41 100 94 86 30.32 30.29 30.24 10 8 5 9 4 - 0.00  
14 51 45 39 46 42 39 100 94 80 30.32 30.28 30.23 9 6 2 13 7 - 0.00  
15 50 44 39 47 43 40 100 90 74 30.40 30.34 30.30 8 6 4 8 6 - 0.00  
16 57 50 43 51 46 42 100 88 69 30.42 30.37 30.32 10 8 3 8 4 - 0.00  
17 55 50 45 52 48 45 100 96 84 30.35 30.32 30.29 10 7 4 10 2 - 0.00  
18 53 50 46 50 48 46 100 96 86 30.35 30.31 30.26 9 6 3 10 5 - 0.00  
19 54 49 44 51 47 43 100 95 80 30.29 30.24 30.16 9 6 4 12 6 - 0.00  
20 54 50 45 51 48 44 100 94 83 30.16 30.11 30.06 10 8 4 10 6 - 0.00  
21 54 50 46 52 49 46 100 98 89 30.11 30.08 30.05 7 5 2 12 5 - 0.00  
22 52 48 44 50 46 44 100 96 83 30.14 30.10 30.06 9 4 0 10 5 - 0.00 Fog
23 53 49 45 51 47 44 100 94 80 30.13 30.09 30.04 9 6 3 13 5 - 0.00  
24 53 49 45 51 49 45 100 96 88 30.10 30.05 30.02 7 4 3 7 3 - 0.00  
25 53 50 46 53 51 47 100 99 93 30.04 29.98 29.89 5 4 3 8 2 - 0.09 Rain
26 60 56 51 56 54 51 100 94 75 30.01 29.91 29.83 10 8 3 14 7 20 0.33 Rain
27 59 52 46 54 51 47 100 92 72 30.02 29.97 29.86 10 10 7 31 6 47 0.28 Rain
28 57 52 48 51 48 45 93 82 67 30.25 30.09 29.93 10 9 6 25 11 31 0.22 Rain , Thunderstorm
29 57 52 46 46 45 43 93 81 64 30.31 30.27 30.25 10 10 9 14 8 - 0.00  
30 61 51 41 51 44 38 100 81 42 30.32 30.27 30.24 10 10 10 15 3 - 0.00  
31 61 52 44 53 47 44 100 89 56 30.27 30.22 30.16 10 10 8 13 2 - 0.00