Weather History for Petersburg, AK

Change the Weather History Date:

Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 38 °F -  
Max Temperature 42 °F 31 °F 49 °F (1986)
Min Temperature 33 °F 24 °F 0 °F (1996)
Degree Days  
Heating Degree Days 28    
Moisture  
Dew Point 34 °F    
Average Humidity 90    
Maximum Humidity 100    
Minimum Humidity 76    
Precipitation  
Precipitation 0.33 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 3 mph (SSW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

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. 31, 2012 Rise Set
Actual Time 8:28 AM AKST 3:21 PM AKST
Civil Twilight 7:40 AM AKST 4:10 PM AKST
Nautical Twilight 6:50 AM AKST 5:00 PM AKST
Astronomical Twilight 6:03 AM AKST 5:47 PM AKST
Moon 7:48 PM AKST (12/31) 9:29 AM AKST (12/31)
Length of Visible Light 8h 30m
Length of Day
6h 53m
Waning Gibbous, 89% 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 (AKST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:16 AM 42.8 °F 40.1 °F 35.6 °F 76% 29.80 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
12:36 AM 42.8 °F 38.6 °F 35.6 °F 76% 29.80 in 10.0 mi East 6.9 mph - N/A   Overcast
12:56 AM 42.8 °F - 35.6 °F 76% 29.80 in 7.0 mi Calm Calm - N/A   Overcast
1:16 AM 41.0 °F 36.4 °F 35.6 °F 81% 29.80 in 8.0 mi ESE 6.9 mph - N/A   Overcast
1:36 AM 41.0 °F 39.0 °F 37.4 °F 87% 29.81 in 10.0 mi SSE 3.5 mph - N/A   Overcast
1:56 AM 39.2 °F 35.0 °F 35.6 °F 87% 29.81 in 8.0 mi East 5.8 mph - 0.04 in   Overcast
2:16 AM 41.0 °F 39.0 °F 35.6 °F 81% 29.81 in 10.0 mi ENE 3.5 mph - 0.03 in   Overcast
2:36 AM 41.0 °F 37.1 °F 35.6 °F 81% 29.81 in 10.0 mi East 5.8 mph - 0.06 in   Overcast
2:56 AM 39.2 °F 35.9 °F 35.6 °F 87% 29.82 in 5.0 mi South 4.6 mph - 0.07 in   Overcast
3:16 AM 39.2 °F - 35.6 °F 87% 29.83 in 6.0 mi Calm Calm - 0.01 in   Overcast
3:36 AM 37.4 °F - 35.6 °F 93% 29.83 in 10.0 mi Calm Calm - 0.04 in   Overcast
3:56 AM 37.4 °F - 35.6 °F 93% 29.84 in 10.0 mi Calm Calm - 0.07 in   Overcast
4:16 AM 37.4 °F - 35.6 °F 93% 29.85 in 10.0 mi Calm Calm - 0.03 in   Overcast
4:36 AM 37.4 °F 33.8 °F 35.6 °F 93% 29.87 in 10.0 mi WSW 4.6 mph - 0.05 in   Overcast
4:56 AM 37.4 °F 33.8 °F 35.6 °F 93% 29.90 in 10.0 mi SW 4.6 mph - 0.07 in   Overcast
5:16 AM 37.4 °F 32.8 °F 35.6 °F 93% 29.92 in 10.0 mi SW 5.8 mph - 0.03 in   Overcast
5:36 AM 37.4 °F 32.1 °F 35.6 °F 93% 29.94 in 10.0 mi SW 6.9 mph - 0.04 in   Overcast
5:56 AM 37.4 °F 32.8 °F 35.6 °F 93% 29.96 in 10.0 mi SW 5.8 mph - 0.05 in   Unknown
6:16 AM 37.4 °F 32.1 °F 35.6 °F 93% 29.98 in 10.0 mi SW 6.9 mph - 0.01 in   Overcast
6:36 AM 37.4 °F 32.8 °F 33.8 °F 87% 30.00 in 10.0 mi SW 5.8 mph - 0.01 in   Overcast
6:56 AM 37.4 °F 33.8 °F 35.6 °F 93% 30.02 in 10.0 mi SW 4.6 mph - 0.01 in   Mostly Cloudy
7:16 AM 37.4 °F 33.8 °F 33.8 °F 87% 30.04 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
7:36 AM 35.6 °F 32.8 °F 33.8 °F 93% 30.06 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
7:56 AM 35.6 °F 31.7 °F 33.8 °F 93% 30.08 in 10.0 mi South 4.6 mph - N/A   Overcast
8:16 AM 35.6 °F - 33.8 °F 93% 30.11 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
8:36 AM 35.6 °F - 33.8 °F 93% 30.13 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
8:56 AM 35.6 °F - 33.8 °F 93% 30.15 in 10.0 mi Calm Calm - 0.01 in   Overcast
9:16 AM 33.8 °F 30.8 °F 32.0 °F 93% 30.17 in 10.0 mi WSW 3.5 mph - N/A   Overcast
9:36 AM 35.6 °F - 33.8 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM 35.6 °F - 33.8 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
10:16 AM 35.6 °F - 35.6 °F 100% 30.21 in 10.0 mi Calm Calm - N/A   Overcast
10:36 AM 35.6 °F - 33.8 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Overcast
10:56 AM 35.6 °F - 33.8 °F 93% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
11:16 AM 35.6 °F - 33.8 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
11:36 AM 37.4 °F - 35.6 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
11:56 AM 37.4 °F - 35.6 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:16 PM 37.4 °F - 35.6 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:36 PM 37.4 °F - 35.6 °F 93% 30.26 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:56 PM 37.4 °F - 35.6 °F 93% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
1:16 PM 37.4 °F - 35.6 °F 93% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
1:36 PM - - - N/A% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
1:56 PM 37.4 °F - 35.6 °F 93% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
2:16 PM 37.4 °F 34.9 °F 35.6 °F 93% 30.28 in 10.0 mi South 3.5 mph - N/A   Overcast
2:36 PM 37.4 °F 32.8 °F 33.8 °F 87% 30.28 in 10.0 mi West 5.8 mph - N/A   Overcast
2:56 PM 37.4 °F 33.8 °F 35.6 °F 93% 30.29 in 10.0 mi SSE 4.6 mph - N/A   Overcast
3:16 PM 37.4 °F - 35.6 °F 93% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
3:36 PM 37.4 °F - 35.6 °F 93% 30.31 in 10.0 mi Calm Calm - 0.01 in   Overcast
4:16 PM 35.6 °F - 33.8 °F 93% 30.33 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:36 PM 35.6 °F 30.7 °F 33.8 °F 93% 30.34 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
4:56 PM 35.6 °F 32.8 °F 33.8 °F 93% 30.35 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
5:16 PM 33.8 °F - 30.2 °F 87% 30.36 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:36 PM 35.6 °F 32.8 °F 33.8 °F 93% 30.37 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
5:56 PM 33.8 °F - 32.0 °F 93% 30.37 in 1.2 mi Calm Calm - N/A   Overcast
6:16 PM 33.8 °F - 32.0 °F 93% 30.37 in 1.2 mi Calm Calm - N/A   Overcast
6:36 PM 33.8 °F - 32.0 °F 93% 30.36 in 1.2 mi Calm Calm - N/A   Overcast
6:56 PM 33.8 °F 28.6 °F 30.2 °F 87% 30.37 in 0.8 mi West 5.8 mph - N/A   Mostly Cloudy
7:16 PM 33.8 °F - 30.2 °F 87% 30.37 in 0.8 mi Calm Calm - N/A   Mostly Cloudy
7:36 PM 35.6 °F - 33.8 °F 93% 30.33 in 0.8 mi Calm Calm - N/A   Mostly Cloudy
7:56 PM 35.6 °F - 33.8 °F 93% 30.33 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
8:16 PM 33.8 °F 30.8 °F 30.2 °F 87% 30.33 in 7.0 mi SW 3.5 mph - N/A   Mostly Cloudy
8:36 PM 35.6 °F - 33.8 °F 93% 30.33 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 PM 35.6 °F 30.7 °F 33.8 °F 93% 30.33 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
9:16 PM 37.4 °F - 33.8 °F 87% 30.34 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:36 PM 35.6 °F 31.7 °F 32.0 °F 87% 30.35 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy