Weather History for St. Augustine, FL

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Month of January, 1999

  Max Avg Min Sum
Temperature  
Max Temperature 77 °F 67 °F 41 °F
Mean Temperature 70 °F 57 °F 36 °F
Min Temperature 62 °F 48 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 30 8 0 253
Cooling Degree Days (base 65) 6 0 0 14
Growing Degree Days (base 50) 20 9 0 276
Dew Point  
Dew Point 64 °F 46 °F 0 °F
Precipitation  
Precipitation 1.03 in 0.12 in 0.00 in 3.66 in
Snowdepth - - - -
Wind  
Wind 33 mph 6 mph 0 mph
Gust Wind 39 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.50 in 30.18 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 01, 1999 Rise Set
Actual Time 7:21 AM EST 5:36 PM EST
Civil Twilight 6:54 AM EST 6:02 PM EST
Nautical Twilight 6:25 AM EST 6:32 PM EST
Astronomical Twilight 5:55 AM EST 7:01 PM EST
Moon 5:30 PM EST (1/1) 6:37 AM EST (1/1)
Length of Visible Light 11h 08m
Length of Day
10h 15m
Full, 100% of the Moon is Illuminated
Jan 1
Full
Jan 1
Full
Jan 9
Last Quarter
Jan 17
New
Jan 24
First Quarter

Weather History Calendar

Precipitation Actual month total 3.66 Average Month Total: 7.67
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
62 | 37 0.00
Average:
62 | 44 0.11
Partly Cloudy
Actual:
75 | 59 0.07
Average:
62 | 44 0.12
Partly Cloudy
Actual:
66 | 53 0.50
Average:
62 | 44 1.20
Clear
Actual:
46 | 30 0.00
Average:
62 | 44 0.13
Clear
Actual:
41 | 30 0.00
Average:
62 | 44 0.13
Clear
Actual:
51 | 26 0.00
Average:
62 | 44 0.13
Clear
Actual:
60 | 33 0.00
Average:
62 | 44 0.14
Scattered Clouds
Actual:
71 | 42 0.00
Average:
62 | 44 0.15
Thunderstorm
Actual:
73 | 53 0.89
Average:
62 | 44 0.15
Partly Cloudy
Actual:
57 | 39 0.00
Average:
62 | 44 1.99
Clear
Actual:
55 | 35 0.00
Average:
62 | 44 0.16
Scattered Clouds
Actual:
62 | 35 0.00
Average:
62 | 44 0.16
Partly Cloudy
Actual:
69 | 46 0.00
Average:
62 | 44 0.16
Clear
Actual:
75 | 53 0.00
Average:
62 | 44 0.17
Scattered Clouds
Actual:
69 | 55 0.00
Average:
62 | 44 0.17
Clear
Actual:
66 | 44 0.00
Average:
62 | 44 0.17
Thunderstorm
Actual:
75 | 51 0.04
Average:
62 | 44 0.17
Thunderstorm
Actual:
77 | 62 0.04
Average:
62 | 44 0.17
Scattered Clouds
Actual:
64 | 50 0.00
Average:
62 | 44 0.17
Scattered Clouds
Actual:
75 | 48 0.00
Average:
62 | 44 0.16
Partly Cloudy
Actual:
69 | 55 0.00
Average:
62 | 44 0.16
Clear
Actual:
77 | 57 0.00
Average:
62 | 44 0.16
Thunderstorm
Actual:
77 | 62 0.65
Average:
62 | 44 0.16
Partly Cloudy
Actual:
68 | 53 1.03
Average:
62 | 44 0.16
Clear
Actual:
64 | 44 0.00
Average:
62 | 45 0.16
Scattered Clouds
Actual:
68 | 44 0.00
Average:
62 | 45 0.16
Partly Cloudy
Actual:
69 | 57 0.00
Average:
62 | 45 0.16
Scattered Clouds
Actual:
73 | 53 0.00
Average:
62 | 45 0.16
Scattered Clouds
Actual:
73 | 55 0.00
Average:
62 | 45 0.16
Scattered Clouds
Actual:
71 | 60 0.00
Average:
62 | 45 0.16
Mostly Cloudy
Actual:
68 | 60 0.44
Average:
62 | 45 0.16
 

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

1999 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 62 50 37 52 41 30 76 63 51 30.25 30.19 30.14 10 10 10 14 5 - 0.00  
2 75 67 59 64 60 0 88 78 7 30.13 29.96 29.78 10 10 3 22 9 31 0.07  
3 66 60 53 57 54 45 94 79 56 30.07 29.93 29.74 10 10 5 13 7 20 0.50  
4 46 38 30 34 25 19 86 61 37 30.36 30.27 30.15 10 10 10 13 6 18 0.00  
5 41 36 30 19 14 10 64 46 29 30.49 30.41 30.36 10 10 10 14 8 20 0.00  
6 51 38 26 36 24 12 81 58 50 30.50 30.42 30.37 10 10 10 15 9 20 0.00  
7 60 46 33 43 36 28 87 67 42 30.43 30.37 30.32 10 10 10 10 4 - 0.00  
8 71 56 42 55 48 37 87 71 50 30.31 30.21 30.10 10 10 10 13 2 - 0.00  
9 73 63 53 59 55 48 88 76 57 30.05 29.95 29.83 10 8 1 14 6 21 0.89 Thunderstorm
10 57 48 39 54 37 28 88 69 58 30.24 30.11 29.93 10 10 10 18 11 24 0.00  
11 55 45 35 36 28 19 76 52 36 30.39 30.33 30.28 10 10 10 13 9 18 0.00  
12 62 48 35 46 41 30 82 67 52 30.33 30.27 30.22 10 10 10 10 4 - 0.00  
13 69 58 46 54 48 39 88 74 53 30.27 30.21 30.19 10 9 0 9 2 - 0.00  
14 75 64 53 57 52 46 82 68 50 30.21 30.14 30.07 10 10 0 18 4 22 0.00  
15 69 62 55 57 52 39 77 66 51 30.11 30.03 30.00 10 10 10 13 8 16 0.00  
16 66 55 44 50 43 36 77 60 49 30.19 30.14 30.11 10 10 10 10 5 - 0.00  
17 75 63 51 61 54 45 77 70 61 30.19 30.13 30.08 10 10 5 17 4 24 0.04 Thunderstorm
18 77 70 62 61 57 54 78 71 57 30.15 30.10 30.00 10 9 2 16 6 22 0.04 Thunderstorm
19 64 57 50 52 45 37 82 61 37 30.26 30.19 30.14 10 9 0 12 6 - 0.00  
20 75 62 48 54 48 39 77 63 38 30.17 30.12 30.07 10 10 10 9 2 - 0.00  
21 69 62 55 57 52 48 82 74 64 30.14 30.09 30.05 10 6 0 9 4 - 0.00  
22 77 67 57 61 57 48 77 65 53 30.11 30.07 30.04 10 9 3 22 8 29 0.00  
23 77 70 62 64 61 54 78 70 61 30.09 30.03 29.97 10 9 1 23 12 31 0.65 Thunderstorm
24 68 60 53 57 49 41 77 62 43 30.21 30.04 29.94 10 9 2 17 7 25 1.03  
25 64 54 44 46 40 36 71 60 45 30.37 30.29 30.22 10 10 10 9 4 - 0.00  
26 68 56 44 52 49 36 77 63 49 30.38 30.35 30.32 10 8 0 14 7 - 0.00  
27 69 63 57 55 52 48 82 72 60 30.36 30.29 30.21 10 2 0 10 5 - 0.00  
28 73 63 53 55 52 45 77 65 47 30.25 30.19 30.13 10 9 1 9 4 - 0.00  
29 73 64 55 57 53 46 77 66 53 30.23 30.18 30.15 10 9 1 12 3 - 0.00  
30 71 66 60 59 55 50 77 67 60 30.26 30.20 30.16 10 9 5 14 4 18 0.00  
31 68 64 60 57 54 50 77 69 64 30.30 30.25 30.19 10 6 1 33 17 39 0.44