Weather History for St. Johnsbury, VT

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature -8 °C -8 °C  
Max Temperature -3 °C -2 °C 12 °C (1895)
Min Temperature -13 °C -13 °C -40 °C (1917)
Degree Days  
Heating Degree Days 47 47  
Month to date heating degree days 1138 1297  
Since 1 July heating degree days 2817 2953  
Moisture  
Dew Point -11 °C    
Average Humidity 75    
Maximum Humidity 88    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 mm 2.29 mm 1.75 mm (1895)
Month to date precipitation 3.29 3.08  
Year to date precipitation 34.02 39.50  
Sea Level Pressure  
Sea Level Pressure 1013 hPa    
Wind  
Wind Speed - (North)    
Max Wind Speed -    
Max Gust Speed -    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:24 AM EST 4:18 PM EST
Civil Twilight 6:51 AM EST 4:51 PM EST
Nautical Twilight 6:14 AM EST 5:28 PM EST
Astronomical Twilight 5:39 AM EST 6:03 PM EST
Moon 7:54 PM EST (12/31) 8:56 AM EST (12/31)
Length of Visible Light 10h 00m
Length of Day
8h 54m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM -10.6 °C -15.6 °C 67% 1016.9 hPa - North - - N/A   Unknown
1:54 AM -9.4 °C -15.0 °C 64% 1017.0 hPa - North - - N/A   Unknown
2:54 AM -11.1 °C -15.0 °C 73% 1017.5 hPa - North - - N/A   Unknown
3:54 AM -11.7 °C -15.0 °C 77% 1017.4 hPa - North - - N/A   Unknown
4:54 AM -11.7 °C -14.4 °C 81% 1017.0 hPa - North - - N/A   Unknown
5:54 AM -11.1 °C -13.9 °C 80% 1016.9 hPa - North - - N/A   Unknown
6:54 AM -11.1 °C -13.3 °C 84% 1016.7 hPa - North - - N/A   Unknown
7:54 AM -10.6 °C -12.8 °C 84% 1016.6 hPa - North - - N/A   Unknown
8:54 AM -10.0 °C -12.2 °C 84% 1016.2 hPa - North - - N/A   Unknown
9:54 AM -9.4 °C -11.7 °C 84% 1016.1 hPa - North - - N/A   Unknown
10:54 AM -8.3 °C -11.1 °C 81% 1015.3 hPa - North - - 0.3 mm   Unknown
11:54 AM -7.8 °C -10.6 °C 81% 1014.2 hPa - North - - N/A   Unknown
12:54 PM -7.2 °C -10.0 °C 81% 1013.1 hPa - North - - N/A   Unknown
1:54 PM -6.7 °C -8.9 °C 85% 1012.1 hPa - North - - N/A   Unknown
2:54 PM -6.1 °C -8.9 °C 81% 1011.5 hPa - North - - N/A   Unknown
3:54 PM -5.6 °C -8.9 °C 78% 1011.3 hPa - North - - N/A   Unknown
4:54 PM -6.1 °C -8.9 °C 81% 1010.5 hPa - North - - N/A   Unknown
5:54 PM -6.1 °C -8.3 °C 85% 1009.8 hPa - North - - N/A   Unknown
6:54 PM -6.1 °C -8.3 °C 85% 1009.6 hPa - North - - N/A   Unknown
7:54 PM -5.6 °C -7.8 °C 85% 1008.3 hPa - North - - N/A   Unknown
8:54 PM -5.6 °C -7.8 °C 85% 1007.2 hPa - North - - N/A   Unknown
9:54 PM -5.0 °C -7.2 °C 85% 1006.3 hPa - North - - N/A   Unknown
10:54 PM -2.8 °C -6.1 °C 78% 1005.4 hPa - North - - N/A   Unknown
11:54 PM -3.3 °C -5.0 °C 88% 1004.5 hPa - North - - N/A   Unknown