MONTHLY WEATHER DATA AND OBS - LAVALE MD							
MONTH 2007							
OBSERVER SCOTT LOHR
DATA COMPILED BY NATE MULLINS
							
Special Observations:  F=fog, T=thunder, H=hail,							
S=sleet, G=glaze, DW=damaging winds							
Observation time for this station is midnight.	
						
	Temperature, °F			Precipitation, In.			
			Liquid	Solid	7am	
	24-hour		Rain	Snow/	Snow	Special
Date	Max	Min	Equiv	Ice	Depth	Obs	Day's Weather Summary

1	41	29					AM Sun, PM Clouds
2	36	31	 .76				Cold rain
3	38	32	 .20	   T		F	Strong NW winds, light snow showers
4	32	27	 .03	 0.5	 T		Light snow, diminishing winds, clearing
5	28	23	 .32	 4.5	 T		Light AM snow, steady PM snow
6	33	13			 5		Mostly sunny to partly cloudy
7	32	17	 .08	   T	 4		Cloudy, AM snow showers
8	40	32	 .03		 4	F	Some light drizzle, few breaks in clouds
9	37	36	1.06		 3	F	Rain heavy at times
10	45	37	 .03		 1	F	Occasional light drizzle
11	45	43	 .08		 T	F	Occasional light drizzle
12	53	38					Gusty AM west winds, falling temps
13	38	32	 .76			F,G	Heavy AM rain, ice nearby, rising temps
14	38	32					Partly sunny to mostly cloudy
15	32	30	 .57	 0.5		S,G	PM freezing rain and sleet
16	32	25	 .13	 0.2	 T	DW	Strong PM W winds, snow flurries
17	28	22	 .01	 0.1	 T		AM clouds, very light snow, diminishing winds
18	38	18					Partly cloudy
19	35	29					Partly sunny
20	40	30					Partly sunny
21	38	29					Overcast
22	41	37				F	Overcast, rising temperature
23	48	34	 .35			F	Period of rain, strong PM wind & falling temps
24	45	32					Sunny & breezy
25	50	32					Sunny, mild
26	39	29					Becoming cloudy
27	42	31	   T				Brief predawn shower, AM sprinkles
28	42	33	 .60			T	PM heavy rain with thunder
29	46	34					Became partly cloudy.
30	34	28	 .13	   T		S	Overcast, PM sleet/snow
31	43	34			 T		Partly cloudy

AVG/SUM	39.0	30.0	5.14	 5.8	0.7	<--Mean
EXT	53	13	1.06	 4.5	 5
Date	12	6	9	   5	 6
*=Also occurred on earlier dates
							
Miscellaneous Stats
			
Mean Monthly Temperature:  34.5 F						
Year precipitation to date:  35.72" (final total for 2007)				
Season snowfall to date:  5.8"					
Number of days with:  
Fog 8
Thunder 1
Sleet 2
Glaze 2
Hail 0
Damaging Wind 1
					
MONTHLY SUMMARY	

December was a busy month with frequent weather systems passing through.  Despite all the frontal passages,
with resulted in well above normal precipitation, temperatures didn't vary significantly and averaged
slightly above normal.  The season's first significant snow fell on the 5th.  Interestingly, December 5th
has had heavy snow (>4") in 3 of the last 6 years.  There were a couple of nasty ice storms as well.  Winds
howled on a number of occasions, particularly on the 3rd, 16th and 23rd, when some minor tree and power
line damage was reported in the area.  Although precipitation wasn't excessive, the 5.14-inch total made it
the wettest December in 16 years of records (1992-2007).

Additional notes/records

5: 4.5" of snow not a daily record but by coincidence we've had several heavy snows on Dec. 5 lately.
9: 1.06" of precip, just shy of the record 1.14" in 1973.
13: Daily record precipitation 0.76" fell.

December 2007 set a new record for lowest mean monthly diurnal temperature range with a 9.0-degree
difference between the mean max (39.0 F) and mean min (30.0) temperatures.