MONTHLY WEATHER DATA AND OBS - LAVALE MD							
SEPTEMBER 2009							
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	72	48					Partly cloudy
2	74	47					Partly cloudy
3	78	49					Partly cloudy
4	78	51					Partly cloudy
5	86	54					Partly cloudy, very warm, increasing humidity
6	75	56					Partly cloudy becoming mostly cloudy
7	76	68	 .06				Mostly cloudy with very light showers
8	72	64	 .03				Predawn shower then mostly cloudy
9	72	60	 .09				Predawn shower, overcast
10	69	58	 .10				Overnight rain, NE breezes, decreasing clouds late
11	68	53					Mostly cloudy
12	70	58					Partly sunny, breezy
13	82	62					Partly cloudy, breezy, warmer
14	82	56					Partly cloudy
15	80	58				F	AM fog becoming partly sunny
16	75	58				F	AM fog becoming partly sunny
17	60	59	 .31			F	Occasional rain showers, cool steady temperatures
18	77	58				F	Mostly cloudy, later becoming partly cloudy
19	77	52					Partly cloudy
20	78	48					Partly cloudy
21	76	58					Partly cloudy, mostly cloudy late
22	76	63					Mostly cloudy becoming partly sunny
23	87	62	 .11			F,T	AM fog, partly cloudy, very warm, brief PM t-storm
24	80	67					Partly cloudy
25	69	61	 .16				Overnight rain, PM clearing
26	61	54	1.06				Steady rain, heavy at times
27	66	54	 .04				AM showers, PM clearing, breezy
28	64	51	 .21				Partly to mostly cloudy, PM rain, windy
29	56	53					Partly sunny, cool, windy
30	56	51					Partly sunny

AVG/SUM	73.1	56.4	2.17	0	-
EXT	87	47	1.06	-	-
Date	23	2	26	-	-
*=Also occurred on earlier dates
							
Miscellaneous Stats
			
Mean Monthly Temperature:  64.7 F
Year precipitation to date:  30.81"
Season snowfall to date:  0.0"
Number of days with:  
Fog 5
Thunder 1

NOTES/SIGNIFICANT EVENTS

7: Low of 68 sets new record high min temperature for date.
17: High 60 Low 59 only 1 degree difference between High and Low, very rare.  0.31" rainfall.
23: Very warm and humid with a brief early evening thunderstorm.
24: Mild overnight low 67 F.
26: Steady rain all day, heavy at times, 1.06" of rainfall.
28: Strong cold front, early PM showers, very windy this afternoon & evening
29: Cool and windy
					
MONTHLY SUMMARY	

September's weather was relatively uneventful, with slightly above normal temperatures, again owing to
well above normal minimum temperatures, as has been the pattern lately.  The coolest temperatures were
at the beginning of the month, with 40s on the first three mornings, while the warmest day was towards
the end, on the 23rd, the only day of the month with any thunder observed.  Most of the month's precip
fell from a series of systems from the 23rd-28th.  About half the month's rain fell from a steady rain
event on the 26th.  Temperatures during the final week finally began to feel like fall.  September was
also a breezy month, particularly towards the end, with winds gusting 30+ mph on the 28th and 29th.

Additional notes/records

24: Record high min 67 F
30: Record low max 56 F